Finding the Third Proportional to 30,994 and 43,128

Step by Step Solution

1. Step 1: Write the proportion equation
   30,994 : 43,128 = 43,128 : x
2. Step 2: Convert to fraction form
   30,994/43,128 = 43,128/x
3. Step 3: Cross multiply
   30,994x = 43,128 × 43,128
4. Step 4: Simplify right side
   30,994x = 1,860,024,384
5. Step 5: Solve for x
   x = 1,860,024,384/30,994
6. Step 6: Final answer
   x = 60,012.40