Finding the Third Proportional to 42,628 and 88,729

Step by Step Solution

1. Step 1: Write the proportion equation
   42,628 : 88,729 = 88,729 : x
2. Step 2: Convert to fraction form
   42,628/88,729 = 88,729/x
3. Step 3: Cross multiply
   42,628x = 88,729 × 88,729
4. Step 4: Simplify right side
   42,628x = 7,872,835,441
5. Step 5: Solve for x
   x = 7,872,835,441/42,628
6. Step 6: Final answer
   x = 184,686.95