Finding the Third Proportional to 4,072,396 and 8,774,216

Step by Step Solution

1. Step 1: Write the proportion equation
   4,072,396 : 8,774,216 = 8,774,216 : x
2. Step 2: Convert to fraction form
   4,072,396/8,774,216 = 8,774,216/x
3. Step 3: Cross multiply
   4,072,396x = 8,774,216 × 8,774,216
4. Step 4: Simplify right side
   4,072,396x = 76,986,866,414,656
5. Step 5: Solve for x
   x = 76,986,866,414,656/4,072,396
6. Step 6: Final answer
   x = 18,904,562.92