Finding the Third Proportional to 56,931 and 90,949

Step by Step Solution

1. Step 1: Write the proportion equation
   56,931 : 90,949 = 90,949 : x
2. Step 2: Convert to fraction form
   56,931/90,949 = 90,949/x
3. Step 3: Cross multiply
   56,931x = 90,949 × 90,949
4. Step 4: Simplify right side
   56,931x = 8,271,720,601
5. Step 5: Solve for x
   x = 8,271,720,601/56,931
6. Step 6: Final answer
   x = 145,293.79