Finding the Third Proportional to 333,796.50 and 721,296

Step by Step Solution

1. Step 1: Write the proportion equation
   333,796.50 : 721,296 = 721,296 : x
2. Step 2: Convert to fraction form
   333,796.50/721,296 = 721,296/x
3. Step 3: Cross multiply
   333,796.50x = 721,296 × 721,296
4. Step 4: Simplify right side
   333,796.50x = 520,267,919,616
5. Step 5: Solve for x
   x = 520,267,919,616/333,796.50
6. Step 6: Final answer
   x = 1,558,638.03