Finding the Third Proportional to 17,913 and 42,137

Step by Step Solution

1. Step 1: Write the proportion equation
   17,913 : 42,137 = 42,137 : x
2. Step 2: Convert to fraction form
   17,913/42,137 = 42,137/x
3. Step 3: Cross multiply
   17,913x = 42,137 × 42,137
4. Step 4: Simplify right side
   17,913x = 1,775,526,769
5. Step 5: Solve for x
   x = 1,775,526,769/17,913
6. Step 6: Final answer
   x = 99,119.45