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Finding the Third Proportional to 75,978,149 and 154,639,180

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Solution

The third proportional to 75,978,149 and 154,639,180 is: 314,738,859.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,978,149 : 154,639,180 = 154,639,180 : x
  2. Step 2: Convert to fraction form
    75,978,149/154,639,180 = 154,639,180/x
  3. Step 3: Cross multiply
    75,978,149x = 154,639,180 × 154,639,180
  4. Step 4: Simplify right side
    75,978,149x = 23,913,275,991,072,400
  5. Step 5: Solve for x
    x = 23,913,275,991,072,400/75,978,149
  6. Step 6: Final answer
    x = 314,738,859.87

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