Finding the Third Proportional to 244,971 and 316,912.50

Step by Step Solution

1. Step 1: Write the proportion equation
   244,971 : 316,912.50 = 316,912.50 : x
2. Step 2: Convert to fraction form
   244,971/316,912.50 = 316,912.50/x
3. Step 3: Cross multiply
   244,971x = 316,912.50 × 316,912.50
4. Step 4: Simplify right side
   244,971x = 100,433,532,656.25
5. Step 5: Solve for x
   x = 100,433,532,656.25/244,971
6. Step 6: Final answer
   x = 409,981.31