Finding the Third Proportional to 770,490 and 1,022,355

Step by Step Solution

1. Step 1: Write the proportion equation
   770,490 : 1,022,355 = 1,022,355 : x
2. Step 2: Convert to fraction form
   770,490/1,022,355 = 1,022,355/x
3. Step 3: Cross multiply
   770,490x = 1,022,355 × 1,022,355
4. Step 4: Simplify right side
   770,490x = 1,045,209,746,025
5. Step 5: Solve for x
   x = 1,045,209,746,025/770,490
6. Step 6: Final answer
   x = 1,356,551.99