Finding the Third Proportional to 904,359 and 1,399,678.50

Step by Step Solution

1. Step 1: Write the proportion equation
   904,359 : 1,399,678.50 = 1,399,678.50 : x
2. Step 2: Convert to fraction form
   904,359/1,399,678.50 = 1,399,678.50/x
3. Step 3: Cross multiply
   904,359x = 1,399,678.50 × 1,399,678.50
4. Step 4: Simplify right side
   904,359x = 1,959,099,903,362.25
5. Step 5: Solve for x
   x = 1,959,099,903,362.25/904,359
6. Step 6: Final answer
   x = 2,166,285.63