Finding the Third Proportional to 420,570 and 925,249.50

Step by Step Solution

1. Step 1: Write the proportion equation
   420,570 : 925,249.50 = 925,249.50 : x
2. Step 2: Convert to fraction form
   420,570/925,249.50 = 925,249.50/x
3. Step 3: Cross multiply
   420,570x = 925,249.50 × 925,249.50
4. Step 4: Simplify right side
   420,570x = 856,086,637,250.25
5. Step 5: Solve for x
   x = 856,086,637,250.25/420,570
6. Step 6: Final answer
   x = 2,035,539.00