Finding the Third Proportional to 4,146,890,592 and 9,139,049,578.50

Step by Step Solution

1. Step 1: Write the proportion equation
   4,146,890,592 : 9,139,049,578.50 = 9,139,049,578.50 : x
2. Step 2: Convert to fraction form
   4,146,890,592/9,139,049,578.50 = 9,139,049,578.50/x
3. Step 3: Cross multiply
   4,146,890,592x = 9,139,049,578.50 × 9,139,049,578.50
4. Step 4: Simplify right side
   4,146,890,592x = 83,522,227,198,281,023,488
5. Step 5: Solve for x
   x = 83,522,227,198,281,023,488/4,146,890,592
6. Step 6: Final answer
   x = 20,140,928,569.33