Finding the Third Proportional to 772,972 and 1,155,906

Step by Step Solution

1. Step 1: Write the proportion equation
   772,972 : 1,155,906 = 1,155,906 : x
2. Step 2: Convert to fraction form
   772,972/1,155,906 = 1,155,906/x
3. Step 3: Cross multiply
   772,972x = 1,155,906 × 1,155,906
4. Step 4: Simplify right side
   772,972x = 1,336,118,680,836
5. Step 5: Solve for x
   x = 1,336,118,680,836/772,972
6. Step 6: Final answer
   x = 1,728,547.32