Finding the Third Proportional to 718,080 and 1,513,920

Step by Step Solution

1. Step 1: Write the proportion equation
   718,080 : 1,513,920 = 1,513,920 : x
2. Step 2: Convert to fraction form
   718,080/1,513,920 = 1,513,920/x
3. Step 3: Cross multiply
   718,080x = 1,513,920 × 1,513,920
4. Step 4: Simplify right side
   718,080x = 2,291,953,766,400
5. Step 5: Solve for x
   x = 2,291,953,766,400/718,080
6. Step 6: Final answer
   x = 3,191,780.53