Finding the Third Proportional to 149,814.56 and 320,952.38

Step by Step Solution

1. Step 1: Write the proportion equation
   149,814.56 : 320,952.38 = 320,952.38 : x
2. Step 2: Convert to fraction form
   149,814.56/320,952.38 = 320,952.38/x
3. Step 3: Cross multiply
   149,814.56x = 320,952.38 × 320,952.38
4. Step 4: Simplify right side
   149,814.56x = 103,010,427,018.14
5. Step 5: Solve for x
   x = 103,010,427,018.14/149,814.56
6. Step 6: Final answer
   x = 687,586.21