Finding the Third Proportional to 79,938 and 166,432.50

Step by Step Solution

1. Step 1: Write the proportion equation
   79,938 : 166,432.50 = 166,432.50 : x
2. Step 2: Convert to fraction form
   79,938/166,432.50 = 166,432.50/x
3. Step 3: Cross multiply
   79,938x = 166,432.50 × 166,432.50
4. Step 4: Simplify right side
   79,938x = 27,699,777,056.25
5. Step 5: Solve for x
   x = 27,699,777,056.25/79,938
6. Step 6: Final answer
   x = 346,515.76