Finding the Third Proportional to 420,105.38 and 921,845.25

Step by Step Solution

1. Step 1: Write the proportion equation
   420,105.38 : 921,845.25 = 921,845.25 : x
2. Step 2: Convert to fraction form
   420,105.38/921,845.25 = 921,845.25/x
3. Step 3: Cross multiply
   420,105.38x = 921,845.25 × 921,845.25
4. Step 4: Simplify right side
   420,105.38x = 849,798,664,947.56
5. Step 5: Solve for x
   x = 849,798,664,947.56/420,105.38
6. Step 6: Final answer
   x = 2,022,822.64