Finding the Third Proportional to 16,216,623 and 21,842,685

Step by Step Solution

1. Step 1: Write the proportion equation
   16,216,623 : 21,842,685 = 21,842,685 : x
2. Step 2: Convert to fraction form
   16,216,623/21,842,685 = 21,842,685/x
3. Step 3: Cross multiply
   16,216,623x = 21,842,685 × 21,842,685
4. Step 4: Simplify right side
   16,216,623x = 477,102,888,009,225
5. Step 5: Solve for x
   x = 477,102,888,009,225/16,216,623
6. Step 6: Final answer
   x = 29,420,606.74