Finding the Third Proportional to 1,215,711 and 2,814,154

Step by Step Solution

1. Step 1: Write the proportion equation
   1,215,711 : 2,814,154 = 2,814,154 : x
2. Step 2: Convert to fraction form
   1,215,711/2,814,154 = 2,814,154/x
3. Step 3: Cross multiply
   1,215,711x = 2,814,154 × 2,814,154
4. Step 4: Simplify right side
   1,215,711x = 7,919,462,735,716
5. Step 5: Solve for x
   x = 7,919,462,735,716/1,215,711
6. Step 6: Final answer
   x = 6,514,264.27