Finding the Third Proportional to 42,248 and 61,387

Step by Step Solution

1. Step 1: Write the proportion equation
   42,248 : 61,387 = 61,387 : x
2. Step 2: Convert to fraction form
   42,248/61,387 = 61,387/x
3. Step 3: Cross multiply
   42,248x = 61,387 × 61,387
4. Step 4: Simplify right side
   42,248x = 3,768,363,769
5. Step 5: Solve for x
   x = 3,768,363,769/42,248
6. Step 6: Final answer
   x = 89,196.26