Finding the Third Proportional to 1,921,466 and 4,158,494

Step by Step Solution

1. Step 1: Write the proportion equation
   1,921,466 : 4,158,494 = 4,158,494 : x
2. Step 2: Convert to fraction form
   1,921,466/4,158,494 = 4,158,494/x
3. Step 3: Cross multiply
   1,921,466x = 4,158,494 × 4,158,494
4. Step 4: Simplify right side
   1,921,466x = 17,293,072,348,036
5. Step 5: Solve for x
   x = 17,293,072,348,036/1,921,466
6. Step 6: Final answer
   x = 8,999,936.69