Finding the Third Proportional to 770,123 and 1,674,490

Step by Step Solution

1. Step 1: Write the proportion equation
   770,123 : 1,674,490 = 1,674,490 : x
2. Step 2: Convert to fraction form
   770,123/1,674,490 = 1,674,490/x
3. Step 3: Cross multiply
   770,123x = 1,674,490 × 1,674,490
4. Step 4: Simplify right side
   770,123x = 2,803,916,760,100
5. Step 5: Solve for x
   x = 2,803,916,760,100/770,123
6. Step 6: Final answer
   x = 3,640,868.74