Finding the Third Proportional to 15,162,606 and 21,682,678.50

Step by Step Solution

1. Step 1: Write the proportion equation
   15,162,606 : 21,682,678.50 = 21,682,678.50 : x
2. Step 2: Convert to fraction form
   15,162,606/21,682,678.50 = 21,682,678.50/x
3. Step 3: Cross multiply
   15,162,606x = 21,682,678.50 × 21,682,678.50
4. Step 4: Simplify right side
   15,162,606x = 470,138,546,934,362.25
5. Step 5: Solve for x
   x = 470,138,546,934,362.25/15,162,606
6. Step 6: Final answer
   x = 31,006,447.50