Finding the Third Proportional to 131,651 and 289,043.50

Step by Step Solution

1. Step 1: Write the proportion equation
   131,651 : 289,043.50 = 289,043.50 : x
2. Step 2: Convert to fraction form
   131,651/289,043.50 = 289,043.50/x
3. Step 3: Cross multiply
   131,651x = 289,043.50 × 289,043.50
4. Step 4: Simplify right side
   131,651x = 83,546,144,892.25
5. Step 5: Solve for x
   x = 83,546,144,892.25/131,651
6. Step 6: Final answer
   x = 634,603.19