Finding the Third Proportional to 6,443,238,572 and 13,871,204,612

Step by Step Solution

1. Step 1: Write the proportion equation
   6,443,238,572 : 13,871,204,612 = 13,871,204,612 : x
2. Step 2: Convert to fraction form
   6,443,238,572/13,871,204,612 = 13,871,204,612/x
3. Step 3: Cross multiply
   6,443,238,572x = 13,871,204,612 × 13,871,204,612
4. Step 4: Simplify right side
   6,443,238,572x = 192,410,317,387,970,084,864
5. Step 5: Solve for x
   x = 192,410,317,387,970,084,864/6,443,238,572
6. Step 6: Final answer
   x = 29,862,361,177.21