Finding the Third Proportional to 2,139,700 and 4,699,240

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139,700 : 4,699,240 = 4,699,240 : x
2. Step 2: Convert to fraction form
   2,139,700/4,699,240 = 4,699,240/x
3. Step 3: Cross multiply
   2,139,700x = 4,699,240 × 4,699,240
4. Step 4: Simplify right side
   2,139,700x = 22,082,856,577,600
5. Step 5: Solve for x
   x = 22,082,856,577,600/2,139,700
6. Step 6: Final answer
   x = 10,320,538.66