Finding the Third Proportional to 31,804.50 and 68,475.75

Step by Step Solution

1. Step 1: Write the proportion equation
   31,804.50 : 68,475.75 = 68,475.75 : x
2. Step 2: Convert to fraction form
   31,804.50/68,475.75 = 68,475.75/x
3. Step 3: Cross multiply
   31,804.50x = 68,475.75 × 68,475.75
4. Step 4: Simplify right side
   31,804.50x = 4,688,928,338.06
5. Step 5: Solve for x
   x = 4,688,928,338.06/31,804.50
6. Step 6: Final answer
   x = 147,429.71