Finding the Third Proportional to 65,451 and 99,391.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,451 : 99,391.50 = 99,391.50 : x
2. Step 2: Convert to fraction form
   65,451/99,391.50 = 99,391.50/x
3. Step 3: Cross multiply
   65,451x = 99,391.50 × 99,391.50
4. Step 4: Simplify right side
   65,451x = 9,878,670,272.25
5. Step 5: Solve for x
   x = 9,878,670,272.25/65,451
6. Step 6: Final answer
   x = 150,932.30