Finding the Third Proportional to 42,780 and 99,952

Step by Step Solution

1. Step 1: Write the proportion equation
   42,780 : 99,952 = 99,952 : x
2. Step 2: Convert to fraction form
   42,780/99,952 = 99,952/x
3. Step 3: Cross multiply
   42,780x = 99,952 × 99,952
4. Step 4: Simplify right side
   42,780x = 9,990,402,304
5. Step 5: Solve for x
   x = 9,990,402,304/42,780
6. Step 6: Final answer
   x = 233,529.74