Finding the Third Proportional to 127,562.50 and 278,089

Step by Step Solution

1. Step 1: Write the proportion equation
   127,562.50 : 278,089 = 278,089 : x
2. Step 2: Convert to fraction form
   127,562.50/278,089 = 278,089/x
3. Step 3: Cross multiply
   127,562.50x = 278,089 × 278,089
4. Step 4: Simplify right side
   127,562.50x = 77,333,491,921
5. Step 5: Solve for x
   x = 77,333,491,921/127,562.50
6. Step 6: Final answer
   x = 606,240.02