Finding the Third Proportional to 826,776 and 1,240,155

Step by Step Solution

1. Step 1: Write the proportion equation
   826,776 : 1,240,155 = 1,240,155 : x
2. Step 2: Convert to fraction form
   826,776/1,240,155 = 1,240,155/x
3. Step 3: Cross multiply
   826,776x = 1,240,155 × 1,240,155
4. Step 4: Simplify right side
   826,776x = 1,537,984,424,025
5. Step 5: Solve for x
   x = 1,537,984,424,025/826,776
6. Step 6: Final answer
   x = 1,860,219.00