Finding the Third Proportional to 131,311 and 288,152

Step by Step Solution

1. Step 1: Write the proportion equation
   131,311 : 288,152 = 288,152 : x
2. Step 2: Convert to fraction form
   131,311/288,152 = 288,152/x
3. Step 3: Cross multiply
   131,311x = 288,152 × 288,152
4. Step 4: Simplify right side
   131,311x = 83,031,575,104
5. Step 5: Solve for x
   x = 83,031,575,104/131,311
6. Step 6: Final answer
   x = 632,327.64