Finding the Third Proportional to 746,396 and 1,123,338

Step by Step Solution

1. Step 1: Write the proportion equation
   746,396 : 1,123,338 = 1,123,338 : x
2. Step 2: Convert to fraction form
   746,396/1,123,338 = 1,123,338/x
3. Step 3: Cross multiply
   746,396x = 1,123,338 × 1,123,338
4. Step 4: Simplify right side
   746,396x = 1,261,888,262,244
5. Step 5: Solve for x
   x = 1,261,888,262,244/746,396
6. Step 6: Final answer
   x = 1,690,641.78