Finding the Third Proportional to 668,317 and 1,036,411.50

Step by Step Solution

1. Step 1: Write the proportion equation
   668,317 : 1,036,411.50 = 1,036,411.50 : x
2. Step 2: Convert to fraction form
   668,317/1,036,411.50 = 1,036,411.50/x
3. Step 3: Cross multiply
   668,317x = 1,036,411.50 × 1,036,411.50
4. Step 4: Simplify right side
   668,317x = 1,074,148,797,332.25
5. Step 5: Solve for x
   x = 1,074,148,797,332.25/668,317
6. Step 6: Final answer
   x = 1,607,244.46