Finding the Third Proportional to 788,706 and 1,287,767

Step by Step Solution

1. Step 1: Write the proportion equation
   788,706 : 1,287,767 = 1,287,767 : x
2. Step 2: Convert to fraction form
   788,706/1,287,767 = 1,287,767/x
3. Step 3: Cross multiply
   788,706x = 1,287,767 × 1,287,767
4. Step 4: Simplify right side
   788,706x = 1,658,343,846,289
5. Step 5: Solve for x
   x = 1,658,343,846,289/788,706
6. Step 6: Final answer
   x = 2,102,613.45