Finding the Third Proportional to 340,384.50 and 743,089

Step by Step Solution

1. Step 1: Write the proportion equation
   340,384.50 : 743,089 = 743,089 : x
2. Step 2: Convert to fraction form
   340,384.50/743,089 = 743,089/x
3. Step 3: Cross multiply
   340,384.50x = 743,089 × 743,089
4. Step 4: Simplify right side
   340,384.50x = 552,181,261,921
5. Step 5: Solve for x
   x = 552,181,261,921/340,384.50
6. Step 6: Final answer
   x = 1,622,227.99