Finding the Third Proportional to 208,155 and 491,215.50

Step by Step Solution

1. Step 1: Write the proportion equation
   208,155 : 491,215.50 = 491,215.50 : x
2. Step 2: Convert to fraction form
   208,155/491,215.50 = 491,215.50/x
3. Step 3: Cross multiply
   208,155x = 491,215.50 × 491,215.50
4. Step 4: Simplify right side
   208,155x = 241,292,667,440.25
5. Step 5: Solve for x
   x = 241,292,667,440.25/208,155
6. Step 6: Final answer
   x = 1,159,197.08