Finding the Third Proportional to 55,816.50 and 78,073.75

Step by Step Solution

1. Step 1: Write the proportion equation
   55,816.50 : 78,073.75 = 78,073.75 : x
2. Step 2: Convert to fraction form
   55,816.50/78,073.75 = 78,073.75/x
3. Step 3: Cross multiply
   55,816.50x = 78,073.75 × 78,073.75
4. Step 4: Simplify right side
   55,816.50x = 6,095,510,439.06
5. Step 5: Solve for x
   x = 6,095,510,439.06/55,816.50
6. Step 6: Final answer
   x = 109,206.25