Finding the Third Proportional to 2,157,819 and 4,722,011

Step by Step Solution

1. Step 1: Write the proportion equation
   2,157,819 : 4,722,011 = 4,722,011 : x
2. Step 2: Convert to fraction form
   2,157,819/4,722,011 = 4,722,011/x
3. Step 3: Cross multiply
   2,157,819x = 4,722,011 × 4,722,011
4. Step 4: Simplify right side
   2,157,819x = 22,297,387,884,121
5. Step 5: Solve for x
   x = 22,297,387,884,121/2,157,819
6. Step 6: Final answer
   x = 10,333,298.52