Finding the Third Proportional to 12,983,108 and 20,209,526

Step by Step Solution

1. Step 1: Write the proportion equation
   12,983,108 : 20,209,526 = 20,209,526 : x
2. Step 2: Convert to fraction form
   12,983,108/20,209,526 = 20,209,526/x
3. Step 3: Cross multiply
   12,983,108x = 20,209,526 × 20,209,526
4. Step 4: Simplify right side
   12,983,108x = 408,424,941,144,676
5. Step 5: Solve for x
   x = 408,424,941,144,676/12,983,108
6. Step 6: Final answer
   x = 31,458,179.44