Finding the Third Proportional to 857,415 and 1,828,704

Step by Step Solution

1. Step 1: Write the proportion equation
   857,415 : 1,828,704 = 1,828,704 : x
2. Step 2: Convert to fraction form
   857,415/1,828,704 = 1,828,704/x
3. Step 3: Cross multiply
   857,415x = 1,828,704 × 1,828,704
4. Step 4: Simplify right side
   857,415x = 3,344,158,319,616
5. Step 5: Solve for x
   x = 3,344,158,319,616/857,415
6. Step 6: Final answer
   x = 3,900,279.70