Finding the Third Proportional to 28,406 and 42,501

Step by Step Solution

1. Step 1: Write the proportion equation
   28,406 : 42,501 = 42,501 : x
2. Step 2: Convert to fraction form
   28,406/42,501 = 42,501/x
3. Step 3: Cross multiply
   28,406x = 42,501 × 42,501
4. Step 4: Simplify right side
   28,406x = 1,806,335,001
5. Step 5: Solve for x
   x = 1,806,335,001/28,406
6. Step 6: Final answer
   x = 63,589.91