Finding the Third Proportional to 42,298 and 66,959

Step by Step Solution

1. Step 1: Write the proportion equation
   42,298 : 66,959 = 66,959 : x
2. Step 2: Convert to fraction form
   42,298/66,959 = 66,959/x
3. Step 3: Cross multiply
   42,298x = 66,959 × 66,959
4. Step 4: Simplify right side
   42,298x = 4,483,507,681
5. Step 5: Solve for x
   x = 4,483,507,681/42,298
6. Step 6: Final answer
   x = 105,998.10