Finding the Third Proportional to 5,368,509 and 8,130,906

Step by Step Solution

1. Step 1: Write the proportion equation
   5,368,509 : 8,130,906 = 8,130,906 : x
2. Step 2: Convert to fraction form
   5,368,509/8,130,906 = 8,130,906/x
3. Step 3: Cross multiply
   5,368,509x = 8,130,906 × 8,130,906
4. Step 4: Simplify right side
   5,368,509x = 66,111,632,380,836
5. Step 5: Solve for x
   x = 66,111,632,380,836/5,368,509
6. Step 6: Final answer
   x = 12,314,710.17