Finding the Third Proportional to 60,488 and 90,792.50

Step by Step Solution

1. Step 1: Write the proportion equation
   60,488 : 90,792.50 = 90,792.50 : x
2. Step 2: Convert to fraction form
   60,488/90,792.50 = 90,792.50/x
3. Step 3: Cross multiply
   60,488x = 90,792.50 × 90,792.50
4. Step 4: Simplify right side
   60,488x = 8,243,278,056.25
5. Step 5: Solve for x
   x = 8,243,278,056.25/60,488
6. Step 6: Final answer
   x = 136,279.56