Finding the Third Proportional to 78,314.50 and 117,818

Step by Step Solution

1. Step 1: Write the proportion equation
   78,314.50 : 117,818 = 117,818 : x
2. Step 2: Convert to fraction form
   78,314.50/117,818 = 117,818/x
3. Step 3: Cross multiply
   78,314.50x = 117,818 × 117,818
4. Step 4: Simplify right side
   78,314.50x = 13,881,081,124
5. Step 5: Solve for x
   x = 13,881,081,124/78,314.50
6. Step 6: Final answer
   x = 177,247.91