Finding the Third Proportional to 236,470 and 518,928.50

Step by Step Solution

1. Step 1: Write the proportion equation
   236,470 : 518,928.50 = 518,928.50 : x
2. Step 2: Convert to fraction form
   236,470/518,928.50 = 518,928.50/x
3. Step 3: Cross multiply
   236,470x = 518,928.50 × 518,928.50
4. Step 4: Simplify right side
   236,470x = 269,286,788,112.25
5. Step 5: Solve for x
   x = 269,286,788,112.25/236,470
6. Step 6: Final answer
   x = 1,138,777.81