Finding the Third Proportional to 745,780 and 1,118,454

Step by Step Solution

1. Step 1: Write the proportion equation
   745,780 : 1,118,454 = 1,118,454 : x
2. Step 2: Convert to fraction form
   745,780/1,118,454 = 1,118,454/x
3. Step 3: Cross multiply
   745,780x = 1,118,454 × 1,118,454
4. Step 4: Simplify right side
   745,780x = 1,250,939,350,116
5. Step 5: Solve for x
   x = 1,250,939,350,116/745,780
6. Step 6: Final answer
   x = 1,677,357.06