Finding the Third Proportional to 340,390.13 and 462,510

Step by Step Solution

1. Step 1: Write the proportion equation
   340,390.13 : 462,510 = 462,510 : x
2. Step 2: Convert to fraction form
   340,390.13/462,510 = 462,510/x
3. Step 3: Cross multiply
   340,390.13x = 462,510 × 462,510
4. Step 4: Simplify right side
   340,390.13x = 213,915,500,100
5. Step 5: Solve for x
   x = 213,915,500,100/340,390.13
6. Step 6: Final answer
   x = 628,442.14