Finding the Third Proportional to 712,280 and 1,109,268

Step by Step Solution

1. Step 1: Write the proportion equation
   712,280 : 1,109,268 = 1,109,268 : x
2. Step 2: Convert to fraction form
   712,280/1,109,268 = 1,109,268/x
3. Step 3: Cross multiply
   712,280x = 1,109,268 × 1,109,268
4. Step 4: Simplify right side
   712,280x = 1,230,475,495,824
5. Step 5: Solve for x
   x = 1,230,475,495,824/712,280
6. Step 6: Final answer
   x = 1,727,516.56