Finding the Third Proportional to 238,810 and 502,196

Step by Step Solution

1. Step 1: Write the proportion equation
   238,810 : 502,196 = 502,196 : x
2. Step 2: Convert to fraction form
   238,810/502,196 = 502,196/x
3. Step 3: Cross multiply
   238,810x = 502,196 × 502,196
4. Step 4: Simplify right side
   238,810x = 252,200,822,416
5. Step 5: Solve for x
   x = 252,200,822,416/238,810
6. Step 6: Final answer
   x = 1,056,073.12