Finding the Third Proportional to 1,870,212 and 4,039,356

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870,212 : 4,039,356 = 4,039,356 : x
2. Step 2: Convert to fraction form
   1,870,212/4,039,356 = 4,039,356/x
3. Step 3: Cross multiply
   1,870,212x = 4,039,356 × 4,039,356
4. Step 4: Simplify right side
   1,870,212x = 16,316,396,894,736
5. Step 5: Solve for x
   x = 16,316,396,894,736/1,870,212
6. Step 6: Final answer
   x = 8,724,356.86