Finding the Third Proportional to 66,102.75 and 99,300.52

Step by Step Solution

1. Step 1: Write the proportion equation
   66,102.75 : 99,300.52 = 99,300.52 : x
2. Step 2: Convert to fraction form
   66,102.75/99,300.52 = 99,300.52/x
3. Step 3: Cross multiply
   66,102.75x = 99,300.52 × 99,300.52
4. Step 4: Simplify right side
   66,102.75x = 9,860,592,403.39
5. Step 5: Solve for x
   x = 9,860,592,403.39/66,102.75
6. Step 6: Final answer
   x = 149,170.68