Finding the Third Proportional to 77,320.50 and 113,211

Step by Step Solution

1. Step 1: Write the proportion equation
   77,320.50 : 113,211 = 113,211 : x
2. Step 2: Convert to fraction form
   77,320.50/113,211 = 113,211/x
3. Step 3: Cross multiply
   77,320.50x = 113,211 × 113,211
4. Step 4: Simplify right side
   77,320.50x = 12,816,730,521
5. Step 5: Solve for x
   x = 12,816,730,521/77,320.50
6. Step 6: Final answer
   x = 165,761.09