Finding the Third Proportional to 1,287,126 and 1,692,569

Step by Step Solution

1. Step 1: Write the proportion equation
   1,287,126 : 1,692,569 = 1,692,569 : x
2. Step 2: Convert to fraction form
   1,287,126/1,692,569 = 1,692,569/x
3. Step 3: Cross multiply
   1,287,126x = 1,692,569 × 1,692,569
4. Step 4: Simplify right side
   1,287,126x = 2,864,789,819,761
5. Step 5: Solve for x
   x = 2,864,789,819,761/1,287,126
6. Step 6: Final answer
   x = 2,225,726.01