Finding the Third Proportional to 39,780 and 88,308

Step by Step Solution

1. Step 1: Write the proportion equation
   39,780 : 88,308 = 88,308 : x
2. Step 2: Convert to fraction form
   39,780/88,308 = 88,308/x
3. Step 3: Cross multiply
   39,780x = 88,308 × 88,308
4. Step 4: Simplify right side
   39,780x = 7,798,302,864
5. Step 5: Solve for x
   x = 7,798,302,864/39,780
6. Step 6: Final answer
   x = 196,035.77