Finding the Third Proportional to 137,207.50 and 300,650

Step by Step Solution

1. Step 1: Write the proportion equation
   137,207.50 : 300,650 = 300,650 : x
2. Step 2: Convert to fraction form
   137,207.50/300,650 = 300,650/x
3. Step 3: Cross multiply
   137,207.50x = 300,650 × 300,650
4. Step 4: Simplify right side
   137,207.50x = 90,390,422,500
5. Step 5: Solve for x
   x = 90,390,422,500/137,207.50
6. Step 6: Final answer
   x = 658,786.31