Finding the Third Proportional to 32,431.50 and 69,865.50

Step by Step Solution

1. Step 1: Write the proportion equation
   32,431.50 : 69,865.50 = 69,865.50 : x
2. Step 2: Convert to fraction form
   32,431.50/69,865.50 = 69,865.50/x
3. Step 3: Cross multiply
   32,431.50x = 69,865.50 × 69,865.50
4. Step 4: Simplify right side
   32,431.50x = 4,881,188,090.25
5. Step 5: Solve for x
   x = 4,881,188,090.25/32,431.50
6. Step 6: Final answer
   x = 150,507.63