Finding the Third Proportional to 165,156 and 248,809.50

Step by Step Solution

1. Step 1: Write the proportion equation
   165,156 : 248,809.50 = 248,809.50 : x
2. Step 2: Convert to fraction form
   165,156/248,809.50 = 248,809.50/x
3. Step 3: Cross multiply
   165,156x = 248,809.50 × 248,809.50
4. Step 4: Simplify right side
   165,156x = 61,906,167,290.25
5. Step 5: Solve for x
   x = 61,906,167,290.25/165,156
6. Step 6: Final answer
   x = 374,834.50