Finding the Third Proportional to 1,081,654 and 1,681,478

Step by Step Solution

1. Step 1: Write the proportion equation
   1,081,654 : 1,681,478 = 1,681,478 : x
2. Step 2: Convert to fraction form
   1,081,654/1,681,478 = 1,681,478/x
3. Step 3: Cross multiply
   1,081,654x = 1,681,478 × 1,681,478
4. Step 4: Simplify right side
   1,081,654x = 2,827,368,264,484
5. Step 5: Solve for x
   x = 2,827,368,264,484/1,081,654
6. Step 6: Final answer
   x = 2,613,930.39