Finding the Third Proportional to 42,409 and 63,710

Step by Step Solution

1. Step 1: Write the proportion equation
   42,409 : 63,710 = 63,710 : x
2. Step 2: Convert to fraction form
   42,409/63,710 = 63,710/x
3. Step 3: Cross multiply
   42,409x = 63,710 × 63,710
4. Step 4: Simplify right side
   42,409x = 4,058,964,100
5. Step 5: Solve for x
   x = 4,058,964,100/42,409
6. Step 6: Final answer
   x = 95,709.97