Finding the Third Proportional to 63,409.50 and 68,944.50

Step by Step Solution

1. Step 1: Write the proportion equation
   63,409.50 : 68,944.50 = 68,944.50 : x
2. Step 2: Convert to fraction form
   63,409.50/68,944.50 = 68,944.50/x
3. Step 3: Cross multiply
   63,409.50x = 68,944.50 × 68,944.50
4. Step 4: Simplify right side
   63,409.50x = 4,753,344,080.25
5. Step 5: Solve for x
   x = 4,753,344,080.25/63,409.50
6. Step 6: Final answer
   x = 74,962.65