Finding the Third Proportional to 809,898 and 1,772,340

Step by Step Solution

1. Step 1: Write the proportion equation
   809,898 : 1,772,340 = 1,772,340 : x
2. Step 2: Convert to fraction form
   809,898/1,772,340 = 1,772,340/x
3. Step 3: Cross multiply
   809,898x = 1,772,340 × 1,772,340
4. Step 4: Simplify right side
   809,898x = 3,141,189,075,600
5. Step 5: Solve for x
   x = 3,141,189,075,600/809,898
6. Step 6: Final answer
   x = 3,878,499.61