Finding the Third Proportional to 78,810.75 and 108,373.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,810.75 : 108,373.50 = 108,373.50 : x
2. Step 2: Convert to fraction form
   78,810.75/108,373.50 = 108,373.50/x
3. Step 3: Cross multiply
   78,810.75x = 108,373.50 × 108,373.50
4. Step 4: Simplify right side
   78,810.75x = 11,744,815,502.25
5. Step 5: Solve for x
   x = 11,744,815,502.25/78,810.75
6. Step 6: Final answer
   x = 149,025.55