Finding the Third Proportional to 4,560,946 and 9,915,750

Step by Step Solution

1. Step 1: Write the proportion equation
   4,560,946 : 9,915,750 = 9,915,750 : x
2. Step 2: Convert to fraction form
   4,560,946/9,915,750 = 9,915,750/x
3. Step 3: Cross multiply
   4,560,946x = 9,915,750 × 9,915,750
4. Step 4: Simplify right side
   4,560,946x = 98,322,098,062,500
5. Step 5: Solve for x
   x = 98,322,098,062,500/4,560,946
6. Step 6: Final answer
   x = 21,557,391.40