Finding the Third Proportional to 815,422 and 1,199,166

Step by Step Solution

1. Step 1: Write the proportion equation
   815,422 : 1,199,166 = 1,199,166 : x
2. Step 2: Convert to fraction form
   815,422/1,199,166 = 1,199,166/x
3. Step 3: Cross multiply
   815,422x = 1,199,166 × 1,199,166
4. Step 4: Simplify right side
   815,422x = 1,437,999,095,556
5. Step 5: Solve for x
   x = 1,437,999,095,556/815,422
6. Step 6: Final answer
   x = 1,763,502.94