Finding the Third Proportional to 57,045.50 and 124,121

Step by Step Solution

1. Step 1: Write the proportion equation
   57,045.50 : 124,121 = 124,121 : x
2. Step 2: Convert to fraction form
   57,045.50/124,121 = 124,121/x
3. Step 3: Cross multiply
   57,045.50x = 124,121 × 124,121
4. Step 4: Simplify right side
   57,045.50x = 15,406,022,641
5. Step 5: Solve for x
   x = 15,406,022,641/57,045.50
6. Step 6: Final answer
   x = 270,065.52