Finding the Third Proportional to 9,142,532 and 19,660,984

Step by Step Solution

1. Step 1: Write the proportion equation
   9,142,532 : 19,660,984 = 19,660,984 : x
2. Step 2: Convert to fraction form
   9,142,532/19,660,984 = 19,660,984/x
3. Step 3: Cross multiply
   9,142,532x = 19,660,984 × 19,660,984
4. Step 4: Simplify right side
   9,142,532x = 386,554,291,848,256
5. Step 5: Solve for x
   x = 386,554,291,848,256/9,142,532
6. Step 6: Final answer
   x = 42,280,879.28