Finding the Third Proportional to 197,802 and 425,643.75

Step by Step Solution

1. Step 1: Write the proportion equation
   197,802 : 425,643.75 = 425,643.75 : x
2. Step 2: Convert to fraction form
   197,802/425,643.75 = 425,643.75/x
3. Step 3: Cross multiply
   197,802x = 425,643.75 × 425,643.75
4. Step 4: Simplify right side
   197,802x = 181,172,601,914.06
5. Step 5: Solve for x
   x = 181,172,601,914.06/197,802
6. Step 6: Final answer
   x = 915,929.07