Finding the Third Proportional to 668,748 and 1,036,656

Step by Step Solution

1. Step 1: Write the proportion equation
   668,748 : 1,036,656 = 1,036,656 : x
2. Step 2: Convert to fraction form
   668,748/1,036,656 = 1,036,656/x
3. Step 3: Cross multiply
   668,748x = 1,036,656 × 1,036,656
4. Step 4: Simplify right side
   668,748x = 1,074,655,662,336
5. Step 5: Solve for x
   x = 1,074,655,662,336/668,748
6. Step 6: Final answer
   x = 1,606,966.54