Finding the Third Proportional to 916,310 and 1,972,442

Step by Step Solution

1. Step 1: Write the proportion equation
   916,310 : 1,972,442 = 1,972,442 : x
2. Step 2: Convert to fraction form
   916,310/1,972,442 = 1,972,442/x
3. Step 3: Cross multiply
   916,310x = 1,972,442 × 1,972,442
4. Step 4: Simplify right side
   916,310x = 3,890,527,443,364
5. Step 5: Solve for x
   x = 3,890,527,443,364/916,310
6. Step 6: Final answer
   x = 4,245,863.78