Finding the Third Proportional to 2,151,111 and 4,722,123

Step by Step Solution

1. Step 1: Write the proportion equation
   2,151,111 : 4,722,123 = 4,722,123 : x
2. Step 2: Convert to fraction form
   2,151,111/4,722,123 = 4,722,123/x
3. Step 3: Cross multiply
   2,151,111x = 4,722,123 × 4,722,123
4. Step 4: Simplify right side
   2,151,111x = 22,298,445,627,129
5. Step 5: Solve for x
   x = 22,298,445,627,129/2,151,111
6. Step 6: Final answer
   x = 10,366,013.48