Finding the Third Proportional to 42,400 and 93,140

Step by Step Solution

1. Step 1: Write the proportion equation
   42,400 : 93,140 = 93,140 : x
2. Step 2: Convert to fraction form
   42,400/93,140 = 93,140/x
3. Step 3: Cross multiply
   42,400x = 93,140 × 93,140
4. Step 4: Simplify right side
   42,400x = 8,675,059,600
5. Step 5: Solve for x
   x = 8,675,059,600/42,400
6. Step 6: Final answer
   x = 204,600.46