Finding the Third Proportional to 333,238.50 and 721,851.75

Step by Step Solution

1. Step 1: Write the proportion equation
   333,238.50 : 721,851.75 = 721,851.75 : x
2. Step 2: Convert to fraction form
   333,238.50/721,851.75 = 721,851.75/x
3. Step 3: Cross multiply
   333,238.50x = 721,851.75 × 721,851.75
4. Step 4: Simplify right side
   333,238.50x = 521,069,948,978.06
5. Step 5: Solve for x
   x = 521,069,948,978.06/333,238.50
6. Step 6: Final answer
   x = 1,563,654.71