Finding the Third Proportional to 28,727 and 42,916

Step by Step Solution

1. Step 1: Write the proportion equation
   28,727 : 42,916 = 42,916 : x
2. Step 2: Convert to fraction form
   28,727/42,916 = 42,916/x
3. Step 3: Cross multiply
   28,727x = 42,916 × 42,916
4. Step 4: Simplify right side
   28,727x = 1,841,783,056
5. Step 5: Solve for x
   x = 1,841,783,056/28,727
6. Step 6: Final answer
   x = 64,113.31