Finding the Third Proportional to 349,476 and 764,379.75

Step by Step Solution

1. Step 1: Write the proportion equation
   349,476 : 764,379.75 = 764,379.75 : x
2. Step 2: Convert to fraction form
   349,476/764,379.75 = 764,379.75/x
3. Step 3: Cross multiply
   349,476x = 764,379.75 × 764,379.75
4. Step 4: Simplify right side
   349,476x = 584,276,402,210.06
5. Step 5: Solve for x
   x = 584,276,402,210.06/349,476
6. Step 6: Final answer
   x = 1,671,864.17