Finding the Third Proportional to 1,397,550 and 2,978,124

Step by Step Solution

1. Step 1: Write the proportion equation
   1,397,550 : 2,978,124 = 2,978,124 : x
2. Step 2: Convert to fraction form
   1,397,550/2,978,124 = 2,978,124/x
3. Step 3: Cross multiply
   1,397,550x = 2,978,124 × 2,978,124
4. Step 4: Simplify right side
   1,397,550x = 8,869,222,559,376
5. Step 5: Solve for x
   x = 8,869,222,559,376/1,397,550
6. Step 6: Final answer
   x = 6,346,264.93