Finding the Third Proportional to 3,557,582 and 7,779,472

Step by Step Solution

1. Step 1: Write the proportion equation
   3,557,582 : 7,779,472 = 7,779,472 : x
2. Step 2: Convert to fraction form
   3,557,582/7,779,472 = 7,779,472/x
3. Step 3: Cross multiply
   3,557,582x = 7,779,472 × 7,779,472
4. Step 4: Simplify right side
   3,557,582x = 60,520,184,598,784
5. Step 5: Solve for x
   x = 60,520,184,598,784/3,557,582
6. Step 6: Final answer
   x = 17,011,606.37