Finding the Third Proportional to 131,372 and 288,160

Step by Step Solution

1. Step 1: Write the proportion equation
   131,372 : 288,160 = 288,160 : x
2. Step 2: Convert to fraction form
   131,372/288,160 = 288,160/x
3. Step 3: Cross multiply
   131,372x = 288,160 × 288,160
4. Step 4: Simplify right side
   131,372x = 83,036,185,600
5. Step 5: Solve for x
   x = 83,036,185,600/131,372
6. Step 6: Final answer
   x = 632,069.13