Finding the Third Proportional to 20,861,884 and 42,313,332

Step by Step Solution

1. Step 1: Write the proportion equation
   20,861,884 : 42,313,332 = 42,313,332 : x
2. Step 2: Convert to fraction form
   20,861,884/42,313,332 = 42,313,332/x
3. Step 3: Cross multiply
   20,861,884x = 42,313,332 × 42,313,332
4. Step 4: Simplify right side
   20,861,884x = 1,790,418,064,942,224
5. Step 5: Solve for x
   x = 1,790,418,064,942,224/20,861,884
6. Step 6: Final answer
   x = 85,822,453.28