Finding the Third Proportional to 55,474.50 and 78,496.13

Step by Step Solution

1. Step 1: Write the proportion equation
   55,474.50 : 78,496.13 = 78,496.13 : x
2. Step 2: Convert to fraction form
   55,474.50/78,496.13 = 78,496.13/x
3. Step 3: Cross multiply
   55,474.50x = 78,496.13 × 78,496.13
4. Step 4: Simplify right side
   55,474.50x = 6,161,641,640.02
5. Step 5: Solve for x
   x = 6,161,641,640.02/55,474.50
6. Step 6: Final answer
   x = 111,071.60