Finding the Third Proportional to 915,802 and 1,994,311

Step by Step Solution

1. Step 1: Write the proportion equation
   915,802 : 1,994,311 = 1,994,311 : x
2. Step 2: Convert to fraction form
   915,802/1,994,311 = 1,994,311/x
3. Step 3: Cross multiply
   915,802x = 1,994,311 × 1,994,311
4. Step 4: Simplify right side
   915,802x = 3,977,276,364,721
5. Step 5: Solve for x
   x = 3,977,276,364,721/915,802
6. Step 6: Final answer
   x = 4,342,943.52