Finding the Third Proportional to 31,480.50 and 69,954

Step by Step Solution

1. Step 1: Write the proportion equation
   31,480.50 : 69,954 = 69,954 : x
2. Step 2: Convert to fraction form
   31,480.50/69,954 = 69,954/x
3. Step 3: Cross multiply
   31,480.50x = 69,954 × 69,954
4. Step 4: Simplify right side
   31,480.50x = 4,893,562,116
5. Step 5: Solve for x
   x = 4,893,562,116/31,480.50
6. Step 6: Final answer
   x = 155,447.41