Finding the Third Proportional to 76,900.88 and 166,069.50

Step by Step Solution

1. Step 1: Write the proportion equation
   76,900.88 : 166,069.50 = 166,069.50 : x
2. Step 2: Convert to fraction form
   76,900.88/166,069.50 = 166,069.50/x
3. Step 3: Cross multiply
   76,900.88x = 166,069.50 × 166,069.50
4. Step 4: Simplify right side
   76,900.88x = 27,579,078,830.25
5. Step 5: Solve for x
   x = 27,579,078,830.25/76,900.88
6. Step 6: Final answer
   x = 358,631.53