Finding the Third Proportional to 349,764 and 753,039.75

Step by Step Solution

1. Step 1: Write the proportion equation
   349,764 : 753,039.75 = 753,039.75 : x
2. Step 2: Convert to fraction form
   349,764/753,039.75 = 753,039.75/x
3. Step 3: Cross multiply
   349,764x = 753,039.75 × 753,039.75
4. Step 4: Simplify right side
   349,764x = 567,068,865,080.06
5. Step 5: Solve for x
   x = 567,068,865,080.06/349,764
6. Step 6: Final answer
   x = 1,621,289.97