Finding the Third Proportional to 5,605,992 and 8,661,168

Step by Step Solution

1. Step 1: Write the proportion equation
   5,605,992 : 8,661,168 = 8,661,168 : x
2. Step 2: Convert to fraction form
   5,605,992/8,661,168 = 8,661,168/x
3. Step 3: Cross multiply
   5,605,992x = 8,661,168 × 8,661,168
4. Step 4: Simplify right side
   5,605,992x = 75,015,831,124,224
5. Step 5: Solve for x
   x = 75,015,831,124,224/5,605,992
6. Step 6: Final answer
   x = 13,381,366.07