Finding the Third Proportional to 54,543.38 and 84,407.06

Step by Step Solution

1. Step 1: Write the proportion equation
   54,543.38 : 84,407.06 = 84,407.06 : x
2. Step 2: Convert to fraction form
   54,543.38/84,407.06 = 84,407.06/x
3. Step 3: Cross multiply
   54,543.38x = 84,407.06 × 84,407.06
4. Step 4: Simplify right side
   54,543.38x = 7,124,552,199.88
5. Step 5: Solve for x
   x = 7,124,552,199.88/54,543.38
6. Step 6: Final answer
   x = 130,621.77