Finding the Third Proportional to 670,586 and 1,445,716

Step by Step Solution

1. Step 1: Write the proportion equation
   670,586 : 1,445,716 = 1,445,716 : x
2. Step 2: Convert to fraction form
   670,586/1,445,716 = 1,445,716/x
3. Step 3: Cross multiply
   670,586x = 1,445,716 × 1,445,716
4. Step 4: Simplify right side
   670,586x = 2,090,094,752,656
5. Step 5: Solve for x
   x = 2,090,094,752,656/670,586
6. Step 6: Final answer
   x = 3,116,818.35