Finding the Third Proportional to 16,216,788 and 21,842,928

Step by Step Solution

1. Step 1: Write the proportion equation
   16,216,788 : 21,842,928 = 21,842,928 : x
2. Step 2: Convert to fraction form
   16,216,788/21,842,928 = 21,842,928/x
3. Step 3: Cross multiply
   16,216,788x = 21,842,928 × 21,842,928
4. Step 4: Simplify right side
   16,216,788x = 477,113,503,613,184
5. Step 5: Solve for x
   x = 477,113,503,613,184/16,216,788
6. Step 6: Final answer
   x = 29,420,962.01