Finding the Third Proportional to 789,905 and 1,156,739

Step by Step Solution

1. Step 1: Write the proportion equation
   789,905 : 1,156,739 = 1,156,739 : x
2. Step 2: Convert to fraction form
   789,905/1,156,739 = 1,156,739/x
3. Step 3: Cross multiply
   789,905x = 1,156,739 × 1,156,739
4. Step 4: Simplify right side
   789,905x = 1,338,045,114,121
5. Step 5: Solve for x
   x = 1,338,045,114,121/789,905
6. Step 6: Final answer
   x = 1,693,931.69