Finding the Third Proportional to 420,153.50 and 921,943

Step by Step Solution

1. Step 1: Write the proportion equation
   420,153.50 : 921,943 = 921,943 : x
2. Step 2: Convert to fraction form
   420,153.50/921,943 = 921,943/x
3. Step 3: Cross multiply
   420,153.50x = 921,943 × 921,943
4. Step 4: Simplify right side
   420,153.50x = 849,978,895,249
5. Step 5: Solve for x
   x = 849,978,895,249/420,153.50
6. Step 6: Final answer
   x = 2,023,019.91