Finding the Third Proportional to 137,089 and 317,666.50

Step by Step Solution

1. Step 1: Write the proportion equation
   137,089 : 317,666.50 = 317,666.50 : x
2. Step 2: Convert to fraction form
   137,089/317,666.50 = 317,666.50/x
3. Step 3: Cross multiply
   137,089x = 317,666.50 × 317,666.50
4. Step 4: Simplify right side
   137,089x = 100,912,005,222.25
5. Step 5: Solve for x
   x = 100,912,005,222.25/137,089
6. Step 6: Final answer
   x = 736,105.78