Finding the Third Proportional to 1,102,203 and 1,686,028

Step by Step Solution

1. Step 1: Write the proportion equation
   1,102,203 : 1,686,028 = 1,686,028 : x
2. Step 2: Convert to fraction form
   1,102,203/1,686,028 = 1,686,028/x
3. Step 3: Cross multiply
   1,102,203x = 1,686,028 × 1,686,028
4. Step 4: Simplify right side
   1,102,203x = 2,842,690,416,784
5. Step 5: Solve for x
   x = 2,842,690,416,784/1,102,203
6. Step 6: Final answer
   x = 2,579,098.78