Finding the Third Proportional to 340,767 and 716,809.50

Step by Step Solution

1. Step 1: Write the proportion equation
   340,767 : 716,809.50 = 716,809.50 : x
2. Step 2: Convert to fraction form
   340,767/716,809.50 = 716,809.50/x
3. Step 3: Cross multiply
   340,767x = 716,809.50 × 716,809.50
4. Step 4: Simplify right side
   340,767x = 513,815,859,290.25
5. Step 5: Solve for x
   x = 513,815,859,290.25/340,767
6. Step 6: Final answer
   x = 1,507,821.65