Finding the Third Proportional to 770,543 and 1,022,428.50

Step by Step Solution

1. Step 1: Write the proportion equation
   770,543 : 1,022,428.50 = 1,022,428.50 : x
2. Step 2: Convert to fraction form
   770,543/1,022,428.50 = 1,022,428.50/x
3. Step 3: Cross multiply
   770,543x = 1,022,428.50 × 1,022,428.50
4. Step 4: Simplify right side
   770,543x = 1,045,360,037,612.25
5. Step 5: Solve for x
   x = 1,045,360,037,612.25/770,543
6. Step 6: Final answer
   x = 1,356,653.73