Finding the Third Proportional to 245,970 and 540,090

Step by Step Solution

1. Step 1: Write the proportion equation
   245,970 : 540,090 = 540,090 : x
2. Step 2: Convert to fraction form
   245,970/540,090 = 540,090/x
3. Step 3: Cross multiply
   245,970x = 540,090 × 540,090
4. Step 4: Simplify right side
   245,970x = 291,697,208,100
5. Step 5: Solve for x
   x = 291,697,208,100/245,970
6. Step 6: Final answer
   x = 1,185,905.63