Finding the Third Proportional to 766,428 and 1,160,245

Step by Step Solution

1. Step 1: Write the proportion equation
   766,428 : 1,160,245 = 1,160,245 : x
2. Step 2: Convert to fraction form
   766,428/1,160,245 = 1,160,245/x
3. Step 3: Cross multiply
   766,428x = 1,160,245 × 1,160,245
4. Step 4: Simplify right side
   766,428x = 1,346,168,460,025
5. Step 5: Solve for x
   x = 1,346,168,460,025/766,428
6. Step 6: Final answer
   x = 1,756,418.69