Finding the Third Proportional to 28,266 and 42,310

Step by Step Solution

1. Step 1: Write the proportion equation
   28,266 : 42,310 = 42,310 : x
2. Step 2: Convert to fraction form
   28,266/42,310 = 42,310/x
3. Step 3: Cross multiply
   28,266x = 42,310 × 42,310
4. Step 4: Simplify right side
   28,266x = 1,790,136,100
5. Step 5: Solve for x
   x = 1,790,136,100/28,266
6. Step 6: Final answer
   x = 63,331.78