Finding the Third Proportional to 1,181,715 and 1,720,905

Step by Step Solution

1. Step 1: Write the proportion equation
   1,181,715 : 1,720,905 = 1,720,905 : x
2. Step 2: Convert to fraction form
   1,181,715/1,720,905 = 1,720,905/x
3. Step 3: Cross multiply
   1,181,715x = 1,720,905 × 1,720,905
4. Step 4: Simplify right side
   1,181,715x = 2,961,514,019,025
5. Step 5: Solve for x
   x = 2,961,514,019,025/1,181,715
6. Step 6: Final answer
   x = 2,506,115.28