Finding the Third Proportional to 90,433 and 137,753.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,433 : 137,753.50 = 137,753.50 : x
2. Step 2: Convert to fraction form
   90,433/137,753.50 = 137,753.50/x
3. Step 3: Cross multiply
   90,433x = 137,753.50 × 137,753.50
4. Step 4: Simplify right side
   90,433x = 18,976,026,762.25
5. Step 5: Solve for x
   x = 18,976,026,762.25/90,433
6. Step 6: Final answer
   x = 209,835.20