Finding the Third Proportional to 349,815 and 741,667.50

Step by Step Solution

1. Step 1: Write the proportion equation
   349,815 : 741,667.50 = 741,667.50 : x
2. Step 2: Convert to fraction form
   349,815/741,667.50 = 741,667.50/x
3. Step 3: Cross multiply
   349,815x = 741,667.50 × 741,667.50
4. Step 4: Simplify right side
   349,815x = 550,070,680,556.25
5. Step 5: Solve for x
   x = 550,070,680,556.25/349,815
6. Step 6: Final answer
   x = 1,572,461.67