Finding the Third Proportional to 879,173 and 1,370,123

Step by Step Solution

1. Step 1: Write the proportion equation
   879,173 : 1,370,123 = 1,370,123 : x
2. Step 2: Convert to fraction form
   879,173/1,370,123 = 1,370,123/x
3. Step 3: Cross multiply
   879,173x = 1,370,123 × 1,370,123
4. Step 4: Simplify right side
   879,173x = 1,877,237,035,129
5. Step 5: Solve for x
   x = 1,877,237,035,129/879,173
6. Step 6: Final answer
   x = 2,135,230.53