Finding the Third Proportional to 4,122,410 and 5,420,948

Step by Step Solution

1. Step 1: Write the proportion equation
   4,122,410 : 5,420,948 = 5,420,948 : x
2. Step 2: Convert to fraction form
   4,122,410/5,420,948 = 5,420,948/x
3. Step 3: Cross multiply
   4,122,410x = 5,420,948 × 5,420,948
4. Step 4: Simplify right side
   4,122,410x = 29,386,677,218,704
5. Step 5: Solve for x
   x = 29,386,677,218,704/4,122,410
6. Step 6: Final answer
   x = 7,128,518.81