Finding the Third Proportional to 131,374 and 288,164

Step by Step Solution

1. Step 1: Write the proportion equation
   131,374 : 288,164 = 288,164 : x
2. Step 2: Convert to fraction form
   131,374/288,164 = 288,164/x
3. Step 3: Cross multiply
   131,374x = 288,164 × 288,164
4. Step 4: Simplify right side
   131,374x = 83,038,490,896
5. Step 5: Solve for x
   x = 83,038,490,896/131,374
6. Step 6: Final answer
   x = 632,077.05