Finding the Third Proportional to 2,123,713 and 4,620,620

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123,713 : 4,620,620 = 4,620,620 : x
2. Step 2: Convert to fraction form
   2,123,713/4,620,620 = 4,620,620/x
3. Step 3: Cross multiply
   2,123,713x = 4,620,620 × 4,620,620
4. Step 4: Simplify right side
   2,123,713x = 21,350,129,184,400
5. Step 5: Solve for x
   x = 21,350,129,184,400/2,123,713
6. Step 6: Final answer
   x = 10,053,208.31