Finding the Third Proportional to 235,836 and 509,215.22

Step by Step Solution

1. Step 1: Write the proportion equation
   235,836 : 509,215.22 = 509,215.22 : x
2. Step 2: Convert to fraction form
   235,836/509,215.22 = 509,215.22/x
3. Step 3: Cross multiply
   235,836x = 509,215.22 × 509,215.22
4. Step 4: Simplify right side
   235,836x = 259,300,139,006.61
5. Step 5: Solve for x
   x = 259,300,139,006.61/235,836
6. Step 6: Final answer
   x = 1,099,493.46