Finding the Third Proportional to 349,112.50 and 751,685

Step by Step Solution

1. Step 1: Write the proportion equation
   349,112.50 : 751,685 = 751,685 : x
2. Step 2: Convert to fraction form
   349,112.50/751,685 = 751,685/x
3. Step 3: Cross multiply
   349,112.50x = 751,685 × 751,685
4. Step 4: Simplify right side
   349,112.50x = 565,030,339,225
5. Step 5: Solve for x
   x = 565,030,339,225/349,112.50
6. Step 6: Final answer
   x = 1,618,476.39