Finding the Third Proportional to 238,474.50 and 505,380

Step by Step Solution

1. Step 1: Write the proportion equation
   238,474.50 : 505,380 = 505,380 : x
2. Step 2: Convert to fraction form
   238,474.50/505,380 = 505,380/x
3. Step 3: Cross multiply
   238,474.50x = 505,380 × 505,380
4. Step 4: Simplify right side
   238,474.50x = 255,408,944,400
5. Step 5: Solve for x
   x = 255,408,944,400/238,474.50
6. Step 6: Final answer
   x = 1,071,011.55