Finding the Third Proportional to 42,893.50 and 61,879.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,893.50 : 61,879.50 = 61,879.50 : x
2. Step 2: Convert to fraction form
   42,893.50/61,879.50 = 61,879.50/x
3. Step 3: Cross multiply
   42,893.50x = 61,879.50 × 61,879.50
4. Step 4: Simplify right side
   42,893.50x = 3,829,072,520.25
5. Step 5: Solve for x
   x = 3,829,072,520.25/42,893.50
6. Step 6: Final answer
   x = 89,269.30