Finding the Third Proportional to 340,684.50 and 716,676

Step by Step Solution

1. Step 1: Write the proportion equation
   340,684.50 : 716,676 = 716,676 : x
2. Step 2: Convert to fraction form
   340,684.50/716,676 = 716,676/x
3. Step 3: Cross multiply
   340,684.50x = 716,676 × 716,676
4. Step 4: Simplify right side
   340,684.50x = 513,624,488,976
5. Step 5: Solve for x
   x = 513,624,488,976/340,684.50
6. Step 6: Final answer
   x = 1,507,625.06