Finding the Third Proportional to 10,399,774 and 23,189,390

Step by Step Solution

1. Step 1: Write the proportion equation
   10,399,774 : 23,189,390 = 23,189,390 : x
2. Step 2: Convert to fraction form
   10,399,774/23,189,390 = 23,189,390/x
3. Step 3: Cross multiply
   10,399,774x = 23,189,390 × 23,189,390
4. Step 4: Simplify right side
   10,399,774x = 537,747,808,572,100
5. Step 5: Solve for x
   x = 537,747,808,572,100/10,399,774
6. Step 6: Final answer
   x = 51,707,643.70