Finding the Third Proportional to 1,382,261 and 2,163,630

Step by Step Solution

1. Step 1: Write the proportion equation
   1,382,261 : 2,163,630 = 2,163,630 : x
2. Step 2: Convert to fraction form
   1,382,261/2,163,630 = 2,163,630/x
3. Step 3: Cross multiply
   1,382,261x = 2,163,630 × 2,163,630
4. Step 4: Simplify right side
   1,382,261x = 4,681,294,776,900
5. Step 5: Solve for x
   x = 4,681,294,776,900/1,382,261
6. Step 6: Final answer
   x = 3,386,693.81