Finding the Third Proportional to 8,724,680 and 13,323,216

Step by Step Solution

1. Step 1: Write the proportion equation
   8,724,680 : 13,323,216 = 13,323,216 : x
2. Step 2: Convert to fraction form
   8,724,680/13,323,216 = 13,323,216/x
3. Step 3: Cross multiply
   8,724,680x = 13,323,216 × 13,323,216
4. Step 4: Simplify right side
   8,724,680x = 177,508,084,582,656
5. Step 5: Solve for x
   x = 177,508,084,582,656/8,724,680
6. Step 6: Final answer
   x = 20,345,512.34