Finding the Third Proportional to 131,761.50 and 289,764

Step by Step Solution

1. Step 1: Write the proportion equation
   131,761.50 : 289,764 = 289,764 : x
2. Step 2: Convert to fraction form
   131,761.50/289,764 = 289,764/x
3. Step 3: Cross multiply
   131,761.50x = 289,764 × 289,764
4. Step 4: Simplify right side
   131,761.50x = 83,963,175,696
5. Step 5: Solve for x
   x = 83,963,175,696/131,761.50
6. Step 6: Final answer
   x = 637,236.03