Finding the Third Proportional to 2,543,776 and 5,390,816

Step by Step Solution

1. Step 1: Write the proportion equation
   2,543,776 : 5,390,816 = 5,390,816 : x
2. Step 2: Convert to fraction form
   2,543,776/5,390,816 = 5,390,816/x
3. Step 3: Cross multiply
   2,543,776x = 5,390,816 × 5,390,816
4. Step 4: Simplify right side
   2,543,776x = 29,060,897,145,856
5. Step 5: Solve for x
   x = 29,060,897,145,856/2,543,776
6. Step 6: Final answer
   x = 11,424,314.54