Finding the Third Proportional to 131,773.50 and 289,791

Step by Step Solution

1. Step 1: Write the proportion equation
   131,773.50 : 289,791 = 289,791 : x
2. Step 2: Convert to fraction form
   131,773.50/289,791 = 289,791/x
3. Step 3: Cross multiply
   131,773.50x = 289,791 × 289,791
4. Step 4: Simplify right side
   131,773.50x = 83,978,823,681
5. Step 5: Solve for x
   x = 83,978,823,681/131,773.50
6. Step 6: Final answer
   x = 637,296.75