Finding the Third Proportional to 2,699,306 and 4,139,178

Step by Step Solution

1. Step 1: Write the proportion equation
   2,699,306 : 4,139,178 = 4,139,178 : x
2. Step 2: Convert to fraction form
   2,699,306/4,139,178 = 4,139,178/x
3. Step 3: Cross multiply
   2,699,306x = 4,139,178 × 4,139,178
4. Step 4: Simplify right side
   2,699,306x = 17,132,794,515,684
5. Step 5: Solve for x
   x = 17,132,794,515,684/2,699,306
6. Step 6: Final answer
   x = 6,347,110.89