Finding the Third Proportional to 2,509,390 and 5,342,296

Step by Step Solution

1. Step 1: Write the proportion equation
   2,509,390 : 5,342,296 = 5,342,296 : x
2. Step 2: Convert to fraction form
   2,509,390/5,342,296 = 5,342,296/x
3. Step 3: Cross multiply
   2,509,390x = 5,342,296 × 5,342,296
4. Step 4: Simplify right side
   2,509,390x = 28,540,126,551,616
5. Step 5: Solve for x
   x = 28,540,126,551,616/2,509,390
6. Step 6: Final answer
   x = 11,373,332.38