Finding the Third Proportional to 746,388 and 1,123,326

Step by Step Solution

1. Step 1: Write the proportion equation
   746,388 : 1,123,326 = 1,123,326 : x
2. Step 2: Convert to fraction form
   746,388/1,123,326 = 1,123,326/x
3. Step 3: Cross multiply
   746,388x = 1,123,326 × 1,123,326
4. Step 4: Simplify right side
   746,388x = 1,261,861,302,276
5. Step 5: Solve for x
   x = 1,261,861,302,276/746,388
6. Step 6: Final answer
   x = 1,690,623.78