Finding the Third Proportional to 874,296 and 1,390,212

Step by Step Solution

1. Step 1: Write the proportion equation
   874,296 : 1,390,212 = 1,390,212 : x
2. Step 2: Convert to fraction form
   874,296/1,390,212 = 1,390,212/x
3. Step 3: Cross multiply
   874,296x = 1,390,212 × 1,390,212
4. Step 4: Simplify right side
   874,296x = 1,932,689,404,944
5. Step 5: Solve for x
   x = 1,932,689,404,944/874,296
6. Step 6: Final answer
   x = 2,210,566.45