Finding the Third Proportional to 54,360.50 and 83,161.50

Step by Step Solution

1. Step 1: Write the proportion equation
   54,360.50 : 83,161.50 = 83,161.50 : x
2. Step 2: Convert to fraction form
   54,360.50/83,161.50 = 83,161.50/x
3. Step 3: Cross multiply
   54,360.50x = 83,161.50 × 83,161.50
4. Step 4: Simplify right side
   54,360.50x = 6,915,835,082.25
5. Step 5: Solve for x
   x = 6,915,835,082.25/54,360.50
6. Step 6: Final answer
   x = 127,221.70