Finding the Third Proportional to 5,405,543 and 7,280,898

Step by Step Solution

1. Step 1: Write the proportion equation
   5,405,543 : 7,280,898 = 7,280,898 : x
2. Step 2: Convert to fraction form
   5,405,543/7,280,898 = 7,280,898/x
3. Step 3: Cross multiply
   5,405,543x = 7,280,898 × 7,280,898
4. Step 4: Simplify right side
   5,405,543x = 53,011,475,686,404
5. Step 5: Solve for x
   x = 53,011,475,686,404/5,405,543
6. Step 6: Final answer
   x = 9,806,873.37