Finding the Third Proportional to 42,609 and 63,085.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,609 : 63,085.50 = 63,085.50 : x
2. Step 2: Convert to fraction form
   42,609/63,085.50 = 63,085.50/x
3. Step 3: Cross multiply
   42,609x = 63,085.50 × 63,085.50
4. Step 4: Simplify right side
   42,609x = 3,979,780,310.25
5. Step 5: Solve for x
   x = 3,979,780,310.25/42,609
6. Step 6: Final answer
   x = 93,402.34