Finding the Third Proportional to 69,061.50 and 152,642.25

Step by Step Solution

1. Step 1: Write the proportion equation
   69,061.50 : 152,642.25 = 152,642.25 : x
2. Step 2: Convert to fraction form
   69,061.50/152,642.25 = 152,642.25/x
3. Step 3: Cross multiply
   69,061.50x = 152,642.25 × 152,642.25
4. Step 4: Simplify right side
   69,061.50x = 23,299,656,485.06
5. Step 5: Solve for x
   x = 23,299,656,485.06/69,061.50
6. Step 6: Final answer
   x = 337,375.48