Finding the Third Proportional to 21,872,618 and 47,864,410

Step by Step Solution

1. Step 1: Write the proportion equation
   21,872,618 : 47,864,410 = 47,864,410 : x
2. Step 2: Convert to fraction form
   21,872,618/47,864,410 = 47,864,410/x
3. Step 3: Cross multiply
   21,872,618x = 47,864,410 × 47,864,410
4. Step 4: Simplify right side
   21,872,618x = 2,291,001,744,648,100
5. Step 5: Solve for x
   x = 2,291,001,744,648,100/21,872,618
6. Step 6: Final answer
   x = 104,742,913.93