Finding the Third Proportional to 1,478,936 and 2,113,428

Step by Step Solution

1. Step 1: Write the proportion equation
   1,478,936 : 2,113,428 = 2,113,428 : x
2. Step 2: Convert to fraction form
   1,478,936/2,113,428 = 2,113,428/x
3. Step 3: Cross multiply
   1,478,936x = 2,113,428 × 2,113,428
4. Step 4: Simplify right side
   1,478,936x = 4,466,577,911,184
5. Step 5: Solve for x
   x = 4,466,577,911,184/1,478,936
6. Step 6: Final answer
   x = 3,020,129.28