Finding the Third Proportional to 68,571,648 and 142,823,808

Step by Step Solution

1. Step 1: Write the proportion equation
   68,571,648 : 142,823,808 = 142,823,808 : x
2. Step 2: Convert to fraction form
   68,571,648/142,823,808 = 142,823,808/x
3. Step 3: Cross multiply
   68,571,648x = 142,823,808 × 142,823,808
4. Step 4: Simplify right side
   68,571,648x = 20,398,640,131,620,864
5. Step 5: Solve for x
   x = 20,398,640,131,620,864/68,571,648
6. Step 6: Final answer
   x = 297,479,216.65