Finding the Third Proportional to 2,780,434 and 4,298,335

Step by Step Solution

1. Step 1: Write the proportion equation
   2,780,434 : 4,298,335 = 4,298,335 : x
2. Step 2: Convert to fraction form
   2,780,434/4,298,335 = 4,298,335/x
3. Step 3: Cross multiply
   2,780,434x = 4,298,335 × 4,298,335
4. Step 4: Simplify right side
   2,780,434x = 18,475,683,772,225
5. Step 5: Solve for x
   x = 18,475,683,772,225/2,780,434
6. Step 6: Final answer
   x = 6,644,892.05