Finding the Third Proportional to 3,828,412 and 8,411,560

Step by Step Solution

1. Step 1: Write the proportion equation
   3,828,412 : 8,411,560 = 8,411,560 : x
2. Step 2: Convert to fraction form
   3,828,412/8,411,560 = 8,411,560/x
3. Step 3: Cross multiply
   3,828,412x = 8,411,560 × 8,411,560
4. Step 4: Simplify right side
   3,828,412x = 70,754,341,633,600
5. Step 5: Solve for x
   x = 70,754,341,633,600/3,828,412
6. Step 6: Final answer
   x = 18,481,381.22