Finding the Third Proportional to 21,660,878 and 47,572,662

Step by Step Solution

1. Step 1: Write the proportion equation
   21,660,878 : 47,572,662 = 47,572,662 : x
2. Step 2: Convert to fraction form
   21,660,878/47,572,662 = 47,572,662/x
3. Step 3: Cross multiply
   21,660,878x = 47,572,662 × 47,572,662
4. Step 4: Simplify right side
   21,660,878x = 2,263,158,169,766,244
5. Step 5: Solve for x
   x = 2,263,158,169,766,244/21,660,878
6. Step 6: Final answer
   x = 104,481,368.20