Finding the Third Proportional to 4,157,466 and 8,889,490

Step by Step Solution

1. Step 1: Write the proportion equation
   4,157,466 : 8,889,490 = 8,889,490 : x
2. Step 2: Convert to fraction form
   4,157,466/8,889,490 = 8,889,490/x
3. Step 3: Cross multiply
   4,157,466x = 8,889,490 × 8,889,490
4. Step 4: Simplify right side
   4,157,466x = 79,023,032,460,100
5. Step 5: Solve for x
   x = 79,023,032,460,100/4,157,466
6. Step 6: Final answer
   x = 19,007,499.39