Finding the Third Proportional to 16,216,791 and 21,842,932.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,216,791 : 21,842,932.50 = 21,842,932.50 : x
2. Step 2: Convert to fraction form
   16,216,791/21,842,932.50 = 21,842,932.50/x
3. Step 3: Cross multiply
   16,216,791x = 21,842,932.50 × 21,842,932.50
4. Step 4: Simplify right side
   16,216,791x = 477,113,700,199,556.25
5. Step 5: Solve for x
   x = 477,113,700,199,556.25/16,216,791
6. Step 6: Final answer
   x = 29,420,968.69