Finding the Third Proportional to 132,759 and 287,671.50

Step by Step Solution

1. Step 1: Write the proportion equation
   132,759 : 287,671.50 = 287,671.50 : x
2. Step 2: Convert to fraction form
   132,759/287,671.50 = 287,671.50/x
3. Step 3: Cross multiply
   132,759x = 287,671.50 × 287,671.50
4. Step 4: Simplify right side
   132,759x = 82,754,891,912.25
5. Step 5: Solve for x
   x = 82,754,891,912.25/132,759
6. Step 6: Final answer
   x = 623,346.76