Finding the Third Proportional to 132,988.50 and 288,583

Step by Step Solution

1. Step 1: Write the proportion equation
   132,988.50 : 288,583 = 288,583 : x
2. Step 2: Convert to fraction form
   132,988.50/288,583 = 288,583/x
3. Step 3: Cross multiply
   132,988.50x = 288,583 × 288,583
4. Step 4: Simplify right side
   132,988.50x = 83,280,147,889
5. Step 5: Solve for x
   x = 83,280,147,889/132,988.50
6. Step 6: Final answer
   x = 626,220.67