Finding the Third Proportional to 1,382,280 and 2,163,711

Step by Step Solution

1. Step 1: Write the proportion equation
   1,382,280 : 2,163,711 = 2,163,711 : x
2. Step 2: Convert to fraction form
   1,382,280/2,163,711 = 2,163,711/x
3. Step 3: Cross multiply
   1,382,280x = 2,163,711 × 2,163,711
4. Step 4: Simplify right side
   1,382,280x = 4,681,645,291,521
5. Step 5: Solve for x
   x = 4,681,645,291,521/1,382,280
6. Step 6: Final answer
   x = 3,386,900.84