Finding the Third Proportional to 42,024 and 56,124

Step by Step Solution

1. Step 1: Write the proportion equation
   42,024 : 56,124 = 56,124 : x
2. Step 2: Convert to fraction form
   42,024/56,124 = 56,124/x
3. Step 3: Cross multiply
   42,024x = 56,124 × 56,124
4. Step 4: Simplify right side
   42,024x = 3,149,903,376
5. Step 5: Solve for x
   x = 3,149,903,376/42,024
6. Step 6: Final answer
   x = 74,954.87