Finding the Third Proportional to 252,648 and 540,300

Step by Step Solution

1. Step 1: Write the proportion equation
   252,648 : 540,300 = 540,300 : x
2. Step 2: Convert to fraction form
   252,648/540,300 = 540,300/x
3. Step 3: Cross multiply
   252,648x = 540,300 × 540,300
4. Step 4: Simplify right side
   252,648x = 291,924,090,000
5. Step 5: Solve for x
   x = 291,924,090,000/252,648
6. Step 6: Final answer
   x = 1,155,457.75