Finding the Third Proportional to 56,406.38 and 84,620.95

Step by Step Solution

1. Step 1: Write the proportion equation
   56,406.38 : 84,620.95 = 84,620.95 : x
2. Step 2: Convert to fraction form
   56,406.38/84,620.95 = 84,620.95/x
3. Step 3: Cross multiply
   56,406.38x = 84,620.95 × 84,620.95
4. Step 4: Simplify right side
   56,406.38x = 7,160,705,707.78
5. Step 5: Solve for x
   x = 7,160,705,707.78/56,406.38
6. Step 6: Final answer
   x = 126,948.52