Finding the Third Proportional to 807,557 and 1,774,321

Step by Step Solution

1. Step 1: Write the proportion equation
   807,557 : 1,774,321 = 1,774,321 : x
2. Step 2: Convert to fraction form
   807,557/1,774,321 = 1,774,321/x
3. Step 3: Cross multiply
   807,557x = 1,774,321 × 1,774,321
4. Step 4: Simplify right side
   807,557x = 3,148,215,011,041
5. Step 5: Solve for x
   x = 3,148,215,011,041/807,557
6. Step 6: Final answer
   x = 3,898,443.10