Finding the Third Proportional to 166,590 and 243,634.50

Step by Step Solution

1. Step 1: Write the proportion equation
   166,590 : 243,634.50 = 243,634.50 : x
2. Step 2: Convert to fraction form
   166,590/243,634.50 = 243,634.50/x
3. Step 3: Cross multiply
   166,590x = 243,634.50 × 243,634.50
4. Step 4: Simplify right side
   166,590x = 59,357,769,590.25
5. Step 5: Solve for x
   x = 59,357,769,590.25/166,590
6. Step 6: Final answer
   x = 356,310.52