Finding the Third Proportional to 4,587,156 and 7,287,543

Step by Step Solution

1. Step 1: Write the proportion equation
   4,587,156 : 7,287,543 = 7,287,543 : x
2. Step 2: Convert to fraction form
   4,587,156/7,287,543 = 7,287,543/x
3. Step 3: Cross multiply
   4,587,156x = 7,287,543 × 7,287,543
4. Step 4: Simplify right side
   4,587,156x = 53,108,282,976,849
5. Step 5: Solve for x
   x = 53,108,282,976,849/4,587,156
6. Step 6: Final answer
   x = 11,577,605.60