Finding the Third Proportional to 20,824,696 and 42,664,152

Step by Step Solution

1. Step 1: Write the proportion equation
   20,824,696 : 42,664,152 = 42,664,152 : x
2. Step 2: Convert to fraction form
   20,824,696/42,664,152 = 42,664,152/x
3. Step 3: Cross multiply
   20,824,696x = 42,664,152 × 42,664,152
4. Step 4: Simplify right side
   20,824,696x = 1,820,229,865,879,104
5. Step 5: Solve for x
   x = 1,820,229,865,879,104/20,824,696
6. Step 6: Final answer
   x = 87,407,271.92