Finding the Third Proportional to 69,042.50 and 92,280.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,042.50 : 92,280.50 = 92,280.50 : x
2. Step 2: Convert to fraction form
   69,042.50/92,280.50 = 92,280.50/x
3. Step 3: Cross multiply
   69,042.50x = 92,280.50 × 92,280.50
4. Step 4: Simplify right side
   69,042.50x = 8,515,690,680.25
5. Step 5: Solve for x
   x = 8,515,690,680.25/69,042.50
6. Step 6: Final answer
   x = 123,339.84