Finding the Third Proportional to 917,723.25 and 1,290,061.69

Step by Step Solution

1. Step 1: Write the proportion equation
   917,723.25 : 1,290,061.69 = 1,290,061.69 : x
2. Step 2: Convert to fraction form
   917,723.25/1,290,061.69 = 1,290,061.69/x
3. Step 3: Cross multiply
   917,723.25x = 1,290,061.69 × 1,290,061.69
4. Step 4: Simplify right side
   917,723.25x = 1,664,259,157,555.35
5. Step 5: Solve for x
   x = 1,664,259,157,555.35/917,723.25
6. Step 6: Final answer
   x = 1,813,465.18