Finding the Third Proportional to 2,159,560 and 4,724,680

Step by Step Solution

1. Step 1: Write the proportion equation
   2,159,560 : 4,724,680 = 4,724,680 : x
2. Step 2: Convert to fraction form
   2,159,560/4,724,680 = 4,724,680/x
3. Step 3: Cross multiply
   2,159,560x = 4,724,680 × 4,724,680
4. Step 4: Simplify right side
   2,159,560x = 22,322,601,102,400
5. Step 5: Solve for x
   x = 22,322,601,102,400/2,159,560
6. Step 6: Final answer
   x = 10,336,643.16