Finding the Third Proportional to 175,419 and 266,818.50

Step by Step Solution

1. Step 1: Write the proportion equation
   175,419 : 266,818.50 = 266,818.50 : x
2. Step 2: Convert to fraction form
   175,419/266,818.50 = 266,818.50/x
3. Step 3: Cross multiply
   175,419x = 266,818.50 × 266,818.50
4. Step 4: Simplify right side
   175,419x = 71,192,111,942.25
5. Step 5: Solve for x
   x = 71,192,111,942.25/175,419
6. Step 6: Final answer
   x = 405,840.37