Finding the Third Proportional to 175,213.50 and 274,488

Step by Step Solution

1. Step 1: Write the proportion equation
   175,213.50 : 274,488 = 274,488 : x
2. Step 2: Convert to fraction form
   175,213.50/274,488 = 274,488/x
3. Step 3: Cross multiply
   175,213.50x = 274,488 × 274,488
4. Step 4: Simplify right side
   175,213.50x = 75,343,662,144
5. Step 5: Solve for x
   x = 75,343,662,144/175,213.50
6. Step 6: Final answer
   x = 430,010.60