Finding the Third Proportional to 2,783,378 and 4,309,737

Step by Step Solution

1. Step 1: Write the proportion equation
   2,783,378 : 4,309,737 = 4,309,737 : x
2. Step 2: Convert to fraction form
   2,783,378/4,309,737 = 4,309,737/x
3. Step 3: Cross multiply
   2,783,378x = 4,309,737 × 4,309,737
4. Step 4: Simplify right side
   2,783,378x = 18,573,833,009,169
5. Step 5: Solve for x
   x = 18,573,833,009,169/2,783,378
6. Step 6: Final answer
   x = 6,673,126.33