Finding the Third Proportional to 28,122 and 42,471

Step by Step Solution

1. Step 1: Write the proportion equation
   28,122 : 42,471 = 42,471 : x
2. Step 2: Convert to fraction form
   28,122/42,471 = 42,471/x
3. Step 3: Cross multiply
   28,122x = 42,471 × 42,471
4. Step 4: Simplify right side
   28,122x = 1,803,785,841
5. Step 5: Solve for x
   x = 1,803,785,841/28,122
6. Step 6: Final answer
   x = 64,141.45