Finding the Third Proportional to 615,780 and 1,343,016

Step by Step Solution

1. Step 1: Write the proportion equation
   615,780 : 1,343,016 = 1,343,016 : x
2. Step 2: Convert to fraction form
   615,780/1,343,016 = 1,343,016/x
3. Step 3: Cross multiply
   615,780x = 1,343,016 × 1,343,016
4. Step 4: Simplify right side
   615,780x = 1,803,691,976,256
5. Step 5: Solve for x
   x = 1,803,691,976,256/615,780
6. Step 6: Final answer
   x = 2,929,117.50