Finding the Third Proportional to 4,245,060 and 9,165,900

Step by Step Solution

1. Step 1: Write the proportion equation
   4,245,060 : 9,165,900 = 9,165,900 : x
2. Step 2: Convert to fraction form
   4,245,060/9,165,900 = 9,165,900/x
3. Step 3: Cross multiply
   4,245,060x = 9,165,900 × 9,165,900
4. Step 4: Simplify right side
   4,245,060x = 84,013,722,810,000
5. Step 5: Solve for x
   x = 84,013,722,810,000/4,245,060
6. Step 6: Final answer
   x = 19,790,938.83