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Finding the Third Proportional to 178,719.75 and 278,629.88

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Solution

The third proportional to 178,719.75 and 278,629.88 is: 434,392.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,719.75 : 278,629.88 = 278,629.88 : x
  2. Step 2: Convert to fraction form
    178,719.75/278,629.88 = 278,629.88/x
  3. Step 3: Cross multiply
    178,719.75x = 278,629.88 × 278,629.88
  4. Step 4: Simplify right side
    178,719.75x = 77,634,607,242.52
  5. Step 5: Solve for x
    x = 77,634,607,242.52/178,719.75
  6. Step 6: Final answer
    x = 434,392.99

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