Finding the Third Proportional to 131,553 and 289,348.50

Step by Step Solution

1. Step 1: Write the proportion equation
   131,553 : 289,348.50 = 289,348.50 : x
2. Step 2: Convert to fraction form
   131,553/289,348.50 = 289,348.50/x
3. Step 3: Cross multiply
   131,553x = 289,348.50 × 289,348.50
4. Step 4: Simplify right side
   131,553x = 83,722,554,452.25
5. Step 5: Solve for x
   x = 83,722,554,452.25/131,553
6. Step 6: Final answer
   x = 636,416.92