Finding the Third Proportional to 42,284.25 and 66,904.88

Step by Step Solution

1. Step 1: Write the proportion equation
   42,284.25 : 66,904.88 = 66,904.88 : x
2. Step 2: Convert to fraction form
   42,284.25/66,904.88 = 66,904.88/x
3. Step 3: Cross multiply
   42,284.25x = 66,904.88 × 66,904.88
4. Step 4: Simplify right side
   42,284.25x = 4,476,262,298.77
5. Step 5: Solve for x
   x = 4,476,262,298.77/42,284.25
6. Step 6: Final answer
   x = 105,861.22