Finding the Third Proportional to 68,621.25 and 99,103.50

Step by Step Solution

1. Step 1: Write the proportion equation
   68,621.25 : 99,103.50 = 99,103.50 : x
2. Step 2: Convert to fraction form
   68,621.25/99,103.50 = 99,103.50/x
3. Step 3: Cross multiply
   68,621.25x = 99,103.50 × 99,103.50
4. Step 4: Simplify right side
   68,621.25x = 9,821,503,712.25
5. Step 5: Solve for x
   x = 9,821,503,712.25/68,621.25
6. Step 6: Final answer
   x = 143,126.27