Finding the Third Proportional to 77,258 and 162,818.50

Step by Step Solution

1. Step 1: Write the proportion equation
   77,258 : 162,818.50 = 162,818.50 : x
2. Step 2: Convert to fraction form
   77,258/162,818.50 = 162,818.50/x
3. Step 3: Cross multiply
   77,258x = 162,818.50 × 162,818.50
4. Step 4: Simplify right side
   77,258x = 26,509,863,942.25
5. Step 5: Solve for x
   x = 26,509,863,942.25/77,258
6. Step 6: Final answer
   x = 343,134.22