Finding the Third Proportional to 42,835.50 and 89,680.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,835.50 : 89,680.50 = 89,680.50 : x
2. Step 2: Convert to fraction form
   42,835.50/89,680.50 = 89,680.50/x
3. Step 3: Cross multiply
   42,835.50x = 89,680.50 × 89,680.50
4. Step 4: Simplify right side
   42,835.50x = 8,042,592,080.25
5. Step 5: Solve for x
   x = 8,042,592,080.25/42,835.50
6. Step 6: Final answer
   x = 187,755.30