Finding the Third Proportional to 4,146,890,415 and 9,139,049,158.50

Step by Step Solution

1. Step 1: Write the proportion equation
   4,146,890,415 : 9,139,049,158.50 = 9,139,049,158.50 : x
2. Step 2: Convert to fraction form
   4,146,890,415/9,139,049,158.50 = 9,139,049,158.50/x
3. Step 3: Cross multiply
   4,146,890,415x = 9,139,049,158.50 × 9,139,049,158.50
4. Step 4: Simplify right side
   4,146,890,415x = 83,522,219,521,479,557,120
5. Step 5: Solve for x
   x = 83,522,219,521,479,557,120/4,146,890,415
6. Step 6: Final answer
   x = 20,140,927,577.77