Finding the Third Proportional to 16,430 and 35,440

Step by Step Solution

1. Step 1: Write the proportion equation
   16,430 : 35,440 = 35,440 : x
2. Step 2: Convert to fraction form
   16,430/35,440 = 35,440/x
3. Step 3: Cross multiply
   16,430x = 35,440 × 35,440
4. Step 4: Simplify right side
   16,430x = 1,255,993,600
5. Step 5: Solve for x
   x = 1,255,993,600/16,430
6. Step 6: Final answer
   x = 76,445.14