Finding the Third Proportional to 130,392 and 284,144

Step by Step Solution

1. Step 1: Write the proportion equation
   130,392 : 284,144 = 284,144 : x
2. Step 2: Convert to fraction form
   130,392/284,144 = 284,144/x
3. Step 3: Cross multiply
   130,392x = 284,144 × 284,144
4. Step 4: Simplify right side
   130,392x = 80,737,812,736
5. Step 5: Solve for x
   x = 80,737,812,736/130,392
6. Step 6: Final answer
   x = 619,192.99