Finding the Third Proportional to 670,124 and 1,445,216

Step by Step Solution

1. Step 1: Write the proportion equation
   670,124 : 1,445,216 = 1,445,216 : x
2. Step 2: Convert to fraction form
   670,124/1,445,216 = 1,445,216/x
3. Step 3: Cross multiply
   670,124x = 1,445,216 × 1,445,216
4. Step 4: Simplify right side
   670,124x = 2,088,649,286,656
5. Step 5: Solve for x
   x = 2,088,649,286,656/670,124
6. Step 6: Final answer
   x = 3,116,810.15