Finding the Third Proportional to 328,399.31 and 710,773.73

Step by Step Solution

1. Step 1: Write the proportion equation
   328,399.31 : 710,773.73 = 710,773.73 : x
2. Step 2: Convert to fraction form
   328,399.31/710,773.73 = 710,773.73/x
3. Step 3: Cross multiply
   328,399.31x = 710,773.73 × 710,773.73
4. Step 4: Simplify right side
   328,399.31x = 505,199,301,477.38
5. Step 5: Solve for x
   x = 505,199,301,477.38/328,399.31
6. Step 6: Final answer
   x = 1,538,368.94