Finding the Third Proportional to 109,080 and 237,870

Step by Step Solution

1. Step 1: Write the proportion equation
   109,080 : 237,870 = 237,870 : x
2. Step 2: Convert to fraction form
   109,080/237,870 = 237,870/x
3. Step 3: Cross multiply
   109,080x = 237,870 × 237,870
4. Step 4: Simplify right side
   109,080x = 56,582,136,900
5. Step 5: Solve for x
   x = 56,582,136,900/109,080
6. Step 6: Final answer
   x = 518,721.46