Finding the Third Proportional to 49,931 and 70,231.50

Step by Step Solution

1. Step 1: Write the proportion equation
   49,931 : 70,231.50 = 70,231.50 : x
2. Step 2: Convert to fraction form
   49,931/70,231.50 = 70,231.50/x
3. Step 3: Cross multiply
   49,931x = 70,231.50 × 70,231.50
4. Step 4: Simplify right side
   49,931x = 4,932,463,592.25
5. Step 5: Solve for x
   x = 4,932,463,592.25/49,931
6. Step 6: Final answer
   x = 98,785.60