Finding the Third Proportional to 12,009,802 and 18,589,156

Step by Step Solution

1. Step 1: Write the proportion equation
   12,009,802 : 18,589,156 = 18,589,156 : x
2. Step 2: Convert to fraction form
   12,009,802/18,589,156 = 18,589,156/x
3. Step 3: Cross multiply
   12,009,802x = 18,589,156 × 18,589,156
4. Step 4: Simplify right side
   12,009,802x = 345,556,720,792,336
5. Step 5: Solve for x
   x = 345,556,720,792,336/12,009,802
6. Step 6: Final answer
   x = 28,772,890.74