Finding the Third Proportional to 917,752 and 1,290,092

Step by Step Solution

1. Step 1: Write the proportion equation
   917,752 : 1,290,092 = 1,290,092 : x
2. Step 2: Convert to fraction form
   917,752/1,290,092 = 1,290,092/x
3. Step 3: Cross multiply
   917,752x = 1,290,092 × 1,290,092
4. Step 4: Simplify right side
   917,752x = 1,664,337,368,464
5. Step 5: Solve for x
   x = 1,664,337,368,464/917,752
6. Step 6: Final answer
   x = 1,813,493.59