Finding the Third Proportional to 4,146,890,409 and 9,139,049,149.50

Step by Step Solution

1. Step 1: Write the proportion equation
   4,146,890,409 : 9,139,049,149.50 = 9,139,049,149.50 : x
2. Step 2: Convert to fraction form
   4,146,890,409/9,139,049,149.50 = 9,139,049,149.50/x
3. Step 3: Cross multiply
   4,146,890,409x = 9,139,049,149.50 × 9,139,049,149.50
4. Step 4: Simplify right side
   4,146,890,409x = 83,522,219,356,976,676,864
5. Step 5: Solve for x
   x = 83,522,219,356,976,676,864/4,146,890,409
6. Step 6: Final answer
   x = 20,140,927,567.25