Finding the Third Proportional to 1,407,224 and 2,180,340

Step by Step Solution

1. Step 1: Write the proportion equation
   1,407,224 : 2,180,340 = 2,180,340 : x
2. Step 2: Convert to fraction form
   1,407,224/2,180,340 = 2,180,340/x
3. Step 3: Cross multiply
   1,407,224x = 2,180,340 × 2,180,340
4. Step 4: Simplify right side
   1,407,224x = 4,753,882,515,600
5. Step 5: Solve for x
   x = 4,753,882,515,600/1,407,224
6. Step 6: Final answer
   x = 3,378,198.86