Finding the Third Proportional to 42,234 and 56,858

Step by Step Solution

1. Step 1: Write the proportion equation
   42,234 : 56,858 = 56,858 : x
2. Step 2: Convert to fraction form
   42,234/56,858 = 56,858/x
3. Step 3: Cross multiply
   42,234x = 56,858 × 56,858
4. Step 4: Simplify right side
   42,234x = 3,232,832,164
5. Step 5: Solve for x
   x = 3,232,832,164/42,234
6. Step 6: Final answer
   x = 76,545.73