Finding the Third Proportional to 18,694.50 and 31,156.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,694.50 : 31,156.50 = 31,156.50 : x
2. Step 2: Convert to fraction form
   18,694.50/31,156.50 = 31,156.50/x
3. Step 3: Cross multiply
   18,694.50x = 31,156.50 × 31,156.50
4. Step 4: Simplify right side
   18,694.50x = 970,727,492.25
5. Step 5: Solve for x
   x = 970,727,492.25/18,694.50
6. Step 6: Final answer
   x = 51,925.83