Finding the Third Proportional to 30,870 and 43,713

Step by Step Solution

1. Step 1: Write the proportion equation
   30,870 : 43,713 = 43,713 : x
2. Step 2: Convert to fraction form
   30,870/43,713 = 43,713/x
3. Step 3: Cross multiply
   30,870x = 43,713 × 43,713
4. Step 4: Simplify right side
   30,870x = 1,910,826,369
5. Step 5: Solve for x
   x = 1,910,826,369/30,870
6. Step 6: Final answer
   x = 61,899.14