Finding the Third Proportional to 15,156 and 21,694.50

Step by Step Solution

1. Step 1: Write the proportion equation
   15,156 : 21,694.50 = 21,694.50 : x
2. Step 2: Convert to fraction form
   15,156/21,694.50 = 21,694.50/x
3. Step 3: Cross multiply
   15,156x = 21,694.50 × 21,694.50
4. Step 4: Simplify right side
   15,156x = 470,651,330.25
5. Step 5: Solve for x
   x = 470,651,330.25/15,156
6. Step 6: Final answer
   x = 31,053.80