Finding the Third Proportional to 397,324.50 and 869,730

Step by Step Solution

1. Step 1: Write the proportion equation
   397,324.50 : 869,730 = 869,730 : x
2. Step 2: Convert to fraction form
   397,324.50/869,730 = 869,730/x
3. Step 3: Cross multiply
   397,324.50x = 869,730 × 869,730
4. Step 4: Simplify right side
   397,324.50x = 756,430,272,900
5. Step 5: Solve for x
   x = 756,430,272,900/397,324.50
6. Step 6: Final answer
   x = 1,903,809.79