Finding the Third Proportional to 34,879.78 and 53,909.72

Step by Step Solution

1. Step 1: Write the proportion equation
   34,879.78 : 53,909.72 = 53,909.72 : x
2. Step 2: Convert to fraction form
   34,879.78/53,909.72 = 53,909.72/x
3. Step 3: Cross multiply
   34,879.78x = 53,909.72 × 53,909.72
4. Step 4: Simplify right side
   34,879.78x = 2,906,257,775.70
5. Step 5: Solve for x
   x = 2,906,257,775.70/34,879.78
6. Step 6: Final answer
   x = 83,322.13