Finding the Third Proportional to 3,873,888 and 8,445,294

Step by Step Solution

1. Step 1: Write the proportion equation
   3,873,888 : 8,445,294 = 8,445,294 : x
2. Step 2: Convert to fraction form
   3,873,888/8,445,294 = 8,445,294/x
3. Step 3: Cross multiply
   3,873,888x = 8,445,294 × 8,445,294
4. Step 4: Simplify right side
   3,873,888x = 71,322,990,746,436
5. Step 5: Solve for x
   x = 71,322,990,746,436/3,873,888
6. Step 6: Final answer
   x = 18,411,216.52