Finding the Third Proportional to 721,662 and 1,566,258

Step by Step Solution

1. Step 1: Write the proportion equation
   721,662 : 1,566,258 = 1,566,258 : x
2. Step 2: Convert to fraction form
   721,662/1,566,258 = 1,566,258/x
3. Step 3: Cross multiply
   721,662x = 1,566,258 × 1,566,258
4. Step 4: Simplify right side
   721,662x = 2,453,164,122,564
5. Step 5: Solve for x
   x = 2,453,164,122,564/721,662
6. Step 6: Final answer
   x = 3,399,325.62