Finding the Third Proportional to 3,828,388 and 8,411,516

Step by Step Solution

1. Step 1: Write the proportion equation
   3,828,388 : 8,411,516 = 8,411,516 : x
2. Step 2: Convert to fraction form
   3,828,388/8,411,516 = 8,411,516/x
3. Step 3: Cross multiply
   3,828,388x = 8,411,516 × 8,411,516
4. Step 4: Simplify right side
   3,828,388x = 70,753,601,418,256
5. Step 5: Solve for x
   x = 70,753,601,418,256/3,828,388
6. Step 6: Final answer
   x = 18,481,303.73