Finding the Third Proportional to 40,603 and 60,699

Step by Step Solution

1. Step 1: Write the proportion equation
   40,603 : 60,699 = 60,699 : x
2. Step 2: Convert to fraction form
   40,603/60,699 = 60,699/x
3. Step 3: Cross multiply
   40,603x = 60,699 × 60,699
4. Step 4: Simplify right side
   40,603x = 3,684,368,601
5. Step 5: Solve for x
   x = 3,684,368,601/40,603
6. Step 6: Final answer
   x = 90,741.29