Finding the Third Proportional to 65,820.50 and 99,312

Step by Step Solution

1. Step 1: Write the proportion equation
   65,820.50 : 99,312 = 99,312 : x
2. Step 2: Convert to fraction form
   65,820.50/99,312 = 99,312/x
3. Step 3: Cross multiply
   65,820.50x = 99,312 × 99,312
4. Step 4: Simplify right side
   65,820.50x = 9,862,873,344
5. Step 5: Solve for x
   x = 9,862,873,344/65,820.50
6. Step 6: Final answer
   x = 149,845.01