Finding the Third Proportional to 138,282 and 301,591.50

Step by Step Solution

1. Step 1: Write the proportion equation
   138,282 : 301,591.50 = 301,591.50 : x
2. Step 2: Convert to fraction form
   138,282/301,591.50 = 301,591.50/x
3. Step 3: Cross multiply
   138,282x = 301,591.50 × 301,591.50
4. Step 4: Simplify right side
   138,282x = 90,957,432,872.25
5. Step 5: Solve for x
   x = 90,957,432,872.25/138,282
6. Step 6: Final answer
   x = 657,767.70