Finding the Third Proportional to 1,223,801 and 1,762,639

Step by Step Solution

1. Step 1: Write the proportion equation
   1,223,801 : 1,762,639 = 1,762,639 : x
2. Step 2: Convert to fraction form
   1,223,801/1,762,639 = 1,762,639/x
3. Step 3: Cross multiply
   1,223,801x = 1,762,639 × 1,762,639
4. Step 4: Simplify right side
   1,223,801x = 3,106,896,244,321
5. Step 5: Solve for x
   x = 3,106,896,244,321/1,223,801
6. Step 6: Final answer
   x = 2,538,726.68