Finding the Third Proportional to 77,618.25 and 166,900.50

Step by Step Solution

1. Step 1: Write the proportion equation
   77,618.25 : 166,900.50 = 166,900.50 : x
2. Step 2: Convert to fraction form
   77,618.25/166,900.50 = 166,900.50/x
3. Step 3: Cross multiply
   77,618.25x = 166,900.50 × 166,900.50
4. Step 4: Simplify right side
   77,618.25x = 27,855,776,900.25
5. Step 5: Solve for x
   x = 27,855,776,900.25/77,618.25
6. Step 6: Final answer
   x = 358,881.80