Finding the Third Proportional to 1,407,228 and 2,180,346

Step by Step Solution

1. Step 1: Write the proportion equation
   1,407,228 : 2,180,346 = 2,180,346 : x
2. Step 2: Convert to fraction form
   1,407,228/2,180,346 = 2,180,346/x
3. Step 3: Cross multiply
   1,407,228x = 2,180,346 × 2,180,346
4. Step 4: Simplify right side
   1,407,228x = 4,753,908,679,716
5. Step 5: Solve for x
   x = 4,753,908,679,716/1,407,228
6. Step 6: Final answer
   x = 3,378,207.85