Finding the Third Proportional to 1,053,288 and 1,587,342

Step by Step Solution

1. Step 1: Write the proportion equation
   1,053,288 : 1,587,342 = 1,587,342 : x
2. Step 2: Convert to fraction form
   1,053,288/1,587,342 = 1,587,342/x
3. Step 3: Cross multiply
   1,053,288x = 1,587,342 × 1,587,342
4. Step 4: Simplify right side
   1,053,288x = 2,519,654,624,964
5. Step 5: Solve for x
   x = 2,519,654,624,964/1,053,288
6. Step 6: Final answer
   x = 2,392,180.13