Finding the Third Proportional to 55,609.50 and 83,140.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,609.50 : 83,140.50 = 83,140.50 : x
2. Step 2: Convert to fraction form
   55,609.50/83,140.50 = 83,140.50/x
3. Step 3: Cross multiply
   55,609.50x = 83,140.50 × 83,140.50
4. Step 4: Simplify right side
   55,609.50x = 6,912,342,740.25
5. Step 5: Solve for x
   x = 6,912,342,740.25/55,609.50
6. Step 6: Final answer
   x = 124,301.47