Finding the Third Proportional to 63,254 and 140,510

Step by Step Solution

1. Step 1: Write the proportion equation
   63,254 : 140,510 = 140,510 : x
2. Step 2: Convert to fraction form
   63,254/140,510 = 140,510/x
3. Step 3: Cross multiply
   63,254x = 140,510 × 140,510
4. Step 4: Simplify right side
   63,254x = 19,743,060,100
5. Step 5: Solve for x
   x = 19,743,060,100/63,254
6. Step 6: Final answer
   x = 312,123.50