Finding the Third Proportional to 4,548,460 and 9,805,436

Step by Step Solution

1. Step 1: Write the proportion equation
   4,548,460 : 9,805,436 = 9,805,436 : x
2. Step 2: Convert to fraction form
   4,548,460/9,805,436 = 9,805,436/x
3. Step 3: Cross multiply
   4,548,460x = 9,805,436 × 9,805,436
4. Step 4: Simplify right side
   4,548,460x = 96,146,575,150,096
5. Step 5: Solve for x
   x = 96,146,575,150,096/4,548,460
6. Step 6: Final answer
   x = 21,138,269.91