Finding the Third Proportional to 42,143.50 and 89,650.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,143.50 : 89,650.50 = 89,650.50 : x
2. Step 2: Convert to fraction form
   42,143.50/89,650.50 = 89,650.50/x
3. Step 3: Cross multiply
   42,143.50x = 89,650.50 × 89,650.50
4. Step 4: Simplify right side
   42,143.50x = 8,037,212,150.25
5. Step 5: Solve for x
   x = 8,037,212,150.25/42,143.50
6. Step 6: Final answer
   x = 190,710.60