Finding the Third Proportional to 274,145.50 and 430,152

Step by Step Solution

1. Step 1: Write the proportion equation
   274,145.50 : 430,152 = 430,152 : x
2. Step 2: Convert to fraction form
   274,145.50/430,152 = 430,152/x
3. Step 3: Cross multiply
   274,145.50x = 430,152 × 430,152
4. Step 4: Simplify right side
   274,145.50x = 185,030,743,104
5. Step 5: Solve for x
   x = 185,030,743,104/274,145.50
6. Step 6: Final answer
   x = 674,936.28