Finding the Third Proportional to 349,479 and 764,386.50

Step by Step Solution

1. Step 1: Write the proportion equation
   349,479 : 764,386.50 = 764,386.50 : x
2. Step 2: Convert to fraction form
   349,479/764,386.50 = 764,386.50/x
3. Step 3: Cross multiply
   349,479x = 764,386.50 × 764,386.50
4. Step 4: Simplify right side
   349,479x = 584,286,721,382.25
5. Step 5: Solve for x
   x = 584,286,721,382.25/349,479
6. Step 6: Final answer
   x = 1,671,879.34