Finding the Third Proportional to 21,329,040 and 30,397,320

Step by Step Solution

1. Step 1: Write the proportion equation
   21,329,040 : 30,397,320 = 30,397,320 : x
2. Step 2: Convert to fraction form
   21,329,040/30,397,320 = 30,397,320/x
3. Step 3: Cross multiply
   21,329,040x = 30,397,320 × 30,397,320
4. Step 4: Simplify right side
   21,329,040x = 923,997,063,182,400
5. Step 5: Solve for x
   x = 923,997,063,182,400/21,329,040
6. Step 6: Final answer
   x = 43,321,080.70