Finding the Third Proportional to 85,528 and 187,310

Step by Step Solution

1. Step 1: Write the proportion equation
   85,528 : 187,310 = 187,310 : x
2. Step 2: Convert to fraction form
   85,528/187,310 = 187,310/x
3. Step 3: Cross multiply
   85,528x = 187,310 × 187,310
4. Step 4: Simplify right side
   85,528x = 35,085,036,100
5. Step 5: Solve for x
   x = 35,085,036,100/85,528
6. Step 6: Final answer
   x = 410,216.96