Finding the Third Proportional to 710,316 and 1,072,845

Step by Step Solution

1. Step 1: Write the proportion equation
   710,316 : 1,072,845 = 1,072,845 : x
2. Step 2: Convert to fraction form
   710,316/1,072,845 = 1,072,845/x
3. Step 3: Cross multiply
   710,316x = 1,072,845 × 1,072,845
4. Step 4: Simplify right side
   710,316x = 1,150,996,394,025
5. Step 5: Solve for x
   x = 1,150,996,394,025/710,316
6. Step 6: Final answer
   x = 1,620,400.49