Finding the Third Proportional to 421,344 and 921,514.50

Step by Step Solution

1. Step 1: Write the proportion equation
   421,344 : 921,514.50 = 921,514.50 : x
2. Step 2: Convert to fraction form
   421,344/921,514.50 = 921,514.50/x
3. Step 3: Cross multiply
   421,344x = 921,514.50 × 921,514.50
4. Step 4: Simplify right side
   421,344x = 849,188,973,710.25
5. Step 5: Solve for x
   x = 849,188,973,710.25/421,344
6. Step 6: Final answer
   x = 2,015,429.14