Finding the Third Proportional to 42,913.50 and 65,647.13

Step by Step Solution

1. Step 1: Write the proportion equation
   42,913.50 : 65,647.13 = 65,647.13 : x
2. Step 2: Convert to fraction form
   42,913.50/65,647.13 = 65,647.13/x
3. Step 3: Cross multiply
   42,913.50x = 65,647.13 × 65,647.13
4. Step 4: Simplify right side
   42,913.50x = 4,309,545,020.77
5. Step 5: Solve for x
   x = 4,309,545,020.77/42,913.50
6. Step 6: Final answer
   x = 100,423.99