Finding the Third Proportional to 42,002 and 56,043

Step by Step Solution

1. Step 1: Write the proportion equation
   42,002 : 56,043 = 56,043 : x
2. Step 2: Convert to fraction form
   42,002/56,043 = 56,043/x
3. Step 3: Cross multiply
   42,002x = 56,043 × 56,043
4. Step 4: Simplify right side
   42,002x = 3,140,817,849
5. Step 5: Solve for x
   x = 3,140,817,849/42,002
6. Step 6: Final answer
   x = 74,777.82