Finding the Third Proportional to 1,407,478 and 3,036,140

Step by Step Solution

1. Step 1: Write the proportion equation
   1,407,478 : 3,036,140 = 3,036,140 : x
2. Step 2: Convert to fraction form
   1,407,478/3,036,140 = 3,036,140/x
3. Step 3: Cross multiply
   1,407,478x = 3,036,140 × 3,036,140
4. Step 4: Simplify right side
   1,407,478x = 9,218,146,099,600
5. Step 5: Solve for x
   x = 9,218,146,099,600/1,407,478
6. Step 6: Final answer
   x = 6,549,406.88