Finding the Third Proportional to 343,908 and 755,887.50

Step by Step Solution

1. Step 1: Write the proportion equation
   343,908 : 755,887.50 = 755,887.50 : x
2. Step 2: Convert to fraction form
   343,908/755,887.50 = 755,887.50/x
3. Step 3: Cross multiply
   343,908x = 755,887.50 × 755,887.50
4. Step 4: Simplify right side
   343,908x = 571,365,912,656.25
5. Step 5: Solve for x
   x = 571,365,912,656.25/343,908
6. Step 6: Final answer
   x = 1,661,391.75