Finding the Third Proportional to 260,853 and 349,402.50

Step by Step Solution

1. Step 1: Write the proportion equation
   260,853 : 349,402.50 = 349,402.50 : x
2. Step 2: Convert to fraction form
   260,853/349,402.50 = 349,402.50/x
3. Step 3: Cross multiply
   260,853x = 349,402.50 × 349,402.50
4. Step 4: Simplify right side
   260,853x = 122,082,107,006.25
5. Step 5: Solve for x
   x = 122,082,107,006.25/260,853
6. Step 6: Final answer
   x = 468,011.13