Finding the Third Proportional to 131,322 and 288,174

Step by Step Solution

1. Step 1: Write the proportion equation
   131,322 : 288,174 = 288,174 : x
2. Step 2: Convert to fraction form
   131,322/288,174 = 288,174/x
3. Step 3: Cross multiply
   131,322x = 288,174 × 288,174
4. Step 4: Simplify right side
   131,322x = 83,044,254,276
5. Step 5: Solve for x
   x = 83,044,254,276/131,322
6. Step 6: Final answer
   x = 632,371.23