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Finding the Third Proportional to 289,983.75 and 443,642.75

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Solution

The third proportional to 289,983.75 and 443,642.75 is: 678,723.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,983.75 : 443,642.75 = 443,642.75 : x
  2. Step 2: Convert to fraction form
    289,983.75/443,642.75 = 443,642.75/x
  3. Step 3: Cross multiply
    289,983.75x = 443,642.75 × 443,642.75
  4. Step 4: Simplify right side
    289,983.75x = 196,818,889,627.56
  5. Step 5: Solve for x
    x = 196,818,889,627.56/289,983.75
  6. Step 6: Final answer
    x = 678,723.86

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