Finding the Third Proportional to 1,081,648 and 1,681,472

Step by Step Solution

1. Step 1: Write the proportion equation
   1,081,648 : 1,681,472 = 1,681,472 : x
2. Step 2: Convert to fraction form
   1,081,648/1,681,472 = 1,681,472/x
3. Step 3: Cross multiply
   1,081,648x = 1,681,472 × 1,681,472
4. Step 4: Simplify right side
   1,081,648x = 2,827,348,086,784
5. Step 5: Solve for x
   x = 2,827,348,086,784/1,081,648
6. Step 6: Final answer
   x = 2,613,926.24