Finding the Third Proportional to 31,560.75 and 69,063.75

Step by Step Solution

1. Step 1: Write the proportion equation
   31,560.75 : 69,063.75 = 69,063.75 : x
2. Step 2: Convert to fraction form
   31,560.75/69,063.75 = 69,063.75/x
3. Step 3: Cross multiply
   31,560.75x = 69,063.75 × 69,063.75
4. Step 4: Simplify right side
   31,560.75x = 4,769,801,564.06
5. Step 5: Solve for x
   x = 4,769,801,564.06/31,560.75
6. Step 6: Final answer
   x = 151,130.81