Finding the Third Proportional to 2,780,424 and 4,298,319

Step by Step Solution

1. Step 1: Write the proportion equation
   2,780,424 : 4,298,319 = 4,298,319 : x
2. Step 2: Convert to fraction form
   2,780,424/4,298,319 = 4,298,319/x
3. Step 3: Cross multiply
   2,780,424x = 4,298,319 × 4,298,319
4. Step 4: Simplify right side
   2,780,424x = 18,475,546,225,761
5. Step 5: Solve for x
   x = 18,475,546,225,761/2,780,424
6. Step 6: Final answer
   x = 6,644,866.48