Finding the Third Proportional to 4,172,494 and 8,943,820

Step by Step Solution

1. Step 1: Write the proportion equation
   4,172,494 : 8,943,820 = 8,943,820 : x
2. Step 2: Convert to fraction form
   4,172,494/8,943,820 = 8,943,820/x
3. Step 3: Cross multiply
   4,172,494x = 8,943,820 × 8,943,820
4. Step 4: Simplify right side
   4,172,494x = 79,991,916,192,400
5. Step 5: Solve for x
   x = 79,991,916,192,400/4,172,494
6. Step 6: Final answer
   x = 19,171,247.75