Finding the Third Proportional to 9,857,470 and 21,573,080

Step by Step Solution

1. Step 1: Write the proportion equation
   9,857,470 : 21,573,080 = 21,573,080 : x
2. Step 2: Convert to fraction form
   9,857,470/21,573,080 = 21,573,080/x
3. Step 3: Cross multiply
   9,857,470x = 21,573,080 × 21,573,080
4. Step 4: Simplify right side
   9,857,470x = 465,397,780,686,400
5. Step 5: Solve for x
   x = 465,397,780,686,400/9,857,470
6. Step 6: Final answer
   x = 47,212,700.69