Finding the Third Proportional to 367,456 and 520,090

Step by Step Solution

1. Step 1: Write the proportion equation
   367,456 : 520,090 = 520,090 : x
2. Step 2: Convert to fraction form
   367,456/520,090 = 520,090/x
3. Step 3: Cross multiply
   367,456x = 520,090 × 520,090
4. Step 4: Simplify right side
   367,456x = 270,493,608,100
5. Step 5: Solve for x
   x = 270,493,608,100/367,456
6. Step 6: Final answer
   x = 736,125.16