Finding the Third Proportional to 5,470,709 and 12,663,716

Step by Step Solution

1. Step 1: Write the proportion equation
   5,470,709 : 12,663,716 = 12,663,716 : x
2. Step 2: Convert to fraction form
   5,470,709/12,663,716 = 12,663,716/x
3. Step 3: Cross multiply
   5,470,709x = 12,663,716 × 12,663,716
4. Step 4: Simplify right side
   5,470,709x = 160,369,702,928,656
5. Step 5: Solve for x
   x = 160,369,702,928,656/5,470,709
6. Step 6: Final answer
   x = 29,314,244.81