Finding the Third Proportional to 28,427 and 42,641

Step by Step Solution

1. Step 1: Write the proportion equation
   28,427 : 42,641 = 42,641 : x
2. Step 2: Convert to fraction form
   28,427/42,641 = 42,641/x
3. Step 3: Cross multiply
   28,427x = 42,641 × 42,641
4. Step 4: Simplify right side
   28,427x = 1,818,254,881
5. Step 5: Solve for x
   x = 1,818,254,881/28,427
6. Step 6: Final answer
   x = 63,962.25