Finding the Third Proportional to 774,306 and 1,173,123

Step by Step Solution

1. Step 1: Write the proportion equation
   774,306 : 1,173,123 = 1,173,123 : x
2. Step 2: Convert to fraction form
   774,306/1,173,123 = 1,173,123/x
3. Step 3: Cross multiply
   774,306x = 1,173,123 × 1,173,123
4. Step 4: Simplify right side
   774,306x = 1,376,217,573,129
5. Step 5: Solve for x
   x = 1,376,217,573,129/774,306
6. Step 6: Final answer
   x = 1,777,356.20