Finding the Third Proportional to 64,946 and 142,564

Step by Step Solution

1. Step 1: Write the proportion equation
   64,946 : 142,564 = 142,564 : x
2. Step 2: Convert to fraction form
   64,946/142,564 = 142,564/x
3. Step 3: Cross multiply
   64,946x = 142,564 × 142,564
4. Step 4: Simplify right side
   64,946x = 20,324,494,096
5. Step 5: Solve for x
   x = 20,324,494,096/64,946
6. Step 6: Final answer
   x = 312,944.51