Finding the Third Proportional to 43,207.50 and 65,416.50

Step by Step Solution

1. Step 1: Write the proportion equation
   43,207.50 : 65,416.50 = 65,416.50 : x
2. Step 2: Convert to fraction form
   43,207.50/65,416.50 = 65,416.50/x
3. Step 3: Cross multiply
   43,207.50x = 65,416.50 × 65,416.50
4. Step 4: Simplify right side
   43,207.50x = 4,279,318,472.25
5. Step 5: Solve for x
   x = 4,279,318,472.25/43,207.50
6. Step 6: Final answer
   x = 99,041.10