Finding the Third Proportional to 770,280 and 1,022,314.50

Step by Step Solution

1. Step 1: Write the proportion equation
   770,280 : 1,022,314.50 = 1,022,314.50 : x
2. Step 2: Convert to fraction form
   770,280/1,022,314.50 = 1,022,314.50/x
3. Step 3: Cross multiply
   770,280x = 1,022,314.50 × 1,022,314.50
4. Step 4: Simplify right side
   770,280x = 1,045,126,936,910.25
5. Step 5: Solve for x
   x = 1,045,126,936,910.25/770,280
6. Step 6: Final answer
   x = 1,356,814.32