Finding the Third Proportional to 813,617 and 1,683,810

Step by Step Solution

1. Step 1: Write the proportion equation
   813,617 : 1,683,810 = 1,683,810 : x
2. Step 2: Convert to fraction form
   813,617/1,683,810 = 1,683,810/x
3. Step 3: Cross multiply
   813,617x = 1,683,810 × 1,683,810
4. Step 4: Simplify right side
   813,617x = 2,835,216,116,100
5. Step 5: Solve for x
   x = 2,835,216,116,100/813,617
6. Step 6: Final answer
   x = 3,484,706.09