Finding the Third Proportional to 55,066.50 and 87,522.75

Step by Step Solution

1. Step 1: Write the proportion equation
   55,066.50 : 87,522.75 = 87,522.75 : x
2. Step 2: Convert to fraction form
   55,066.50/87,522.75 = 87,522.75/x
3. Step 3: Cross multiply
   55,066.50x = 87,522.75 × 87,522.75
4. Step 4: Simplify right side
   55,066.50x = 7,660,231,767.56
5. Step 5: Solve for x
   x = 7,660,231,767.56/55,066.50
6. Step 6: Final answer
   x = 139,108.75