Finding the Third Proportional to 1,101,815 and 1,685,321

Step by Step Solution

1. Step 1: Write the proportion equation
   1,101,815 : 1,685,321 = 1,685,321 : x
2. Step 2: Convert to fraction form
   1,101,815/1,685,321 = 1,685,321/x
3. Step 3: Cross multiply
   1,101,815x = 1,685,321 × 1,685,321
4. Step 4: Simplify right side
   1,101,815x = 2,840,306,873,041
5. Step 5: Solve for x
   x = 2,840,306,873,041/1,101,815
6. Step 6: Final answer
   x = 2,577,843.72