Finding the Third Proportional to 430,065 and 683,113.50

Step by Step Solution

1. Step 1: Write the proportion equation
   430,065 : 683,113.50 = 683,113.50 : x
2. Step 2: Convert to fraction form
   430,065/683,113.50 = 683,113.50/x
3. Step 3: Cross multiply
   430,065x = 683,113.50 × 683,113.50
4. Step 4: Simplify right side
   430,065x = 466,644,053,882.25
5. Step 5: Solve for x
   x = 466,644,053,882.25/430,065
6. Step 6: Final answer
   x = 1,085,054.71