Finding the Third Proportional to 431,193 and 907,066.50

Step by Step Solution

1. Step 1: Write the proportion equation
   431,193 : 907,066.50 = 907,066.50 : x
2. Step 2: Convert to fraction form
   431,193/907,066.50 = 907,066.50/x
3. Step 3: Cross multiply
   431,193x = 907,066.50 × 907,066.50
4. Step 4: Simplify right side
   431,193x = 822,769,635,422.25
5. Step 5: Solve for x
   x = 822,769,635,422.25/431,193
6. Step 6: Final answer
   x = 1,908,123.82