Finding the Third Proportional to 12,159,048 and 18,974,699.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,159,048 : 18,974,699.50 = 18,974,699.50 : x
2. Step 2: Convert to fraction form
   12,159,048/18,974,699.50 = 18,974,699.50/x
3. Step 3: Cross multiply
   12,159,048x = 18,974,699.50 × 18,974,699.50
4. Step 4: Simplify right side
   12,159,048x = 360,039,221,115,300.25
5. Step 5: Solve for x
   x = 360,039,221,115,300.25/12,159,048
6. Step 6: Final answer
   x = 29,610,806.79