Finding the Third Proportional to 3,555,612 and 7,820,136

Step by Step Solution

1. Step 1: Write the proportion equation
   3,555,612 : 7,820,136 = 7,820,136 : x
2. Step 2: Convert to fraction form
   3,555,612/7,820,136 = 7,820,136/x
3. Step 3: Cross multiply
   3,555,612x = 7,820,136 × 7,820,136
4. Step 4: Simplify right side
   3,555,612x = 61,154,527,058,496
5. Step 5: Solve for x
   x = 61,154,527,058,496/3,555,612
6. Step 6: Final answer
   x = 17,199,437.69