Finding the Third Proportional to 964,368 and 2,100,123

Step by Step Solution

1. Step 1: Write the proportion equation
   964,368 : 2,100,123 = 2,100,123 : x
2. Step 2: Convert to fraction form
   964,368/2,100,123 = 2,100,123/x
3. Step 3: Cross multiply
   964,368x = 2,100,123 × 2,100,123
4. Step 4: Simplify right side
   964,368x = 4,410,516,615,129
5. Step 5: Solve for x
   x = 4,410,516,615,129/964,368
6. Step 6: Final answer
   x = 4,573,478.81