Finding the Third Proportional to 57,778.50 and 88,770

Step by Step Solution

1. Step 1: Write the proportion equation
   57,778.50 : 88,770 = 88,770 : x
2. Step 2: Convert to fraction form
   57,778.50/88,770 = 88,770/x
3. Step 3: Cross multiply
   57,778.50x = 88,770 × 88,770
4. Step 4: Simplify right side
   57,778.50x = 7,880,112,900
5. Step 5: Solve for x
   x = 7,880,112,900/57,778.50
6. Step 6: Final answer
   x = 136,384.86