Finding the Third Proportional to 409,131.50 and 875,125

Step by Step Solution

1. Step 1: Write the proportion equation
   409,131.50 : 875,125 = 875,125 : x
2. Step 2: Convert to fraction form
   409,131.50/875,125 = 875,125/x
3. Step 3: Cross multiply
   409,131.50x = 875,125 × 875,125
4. Step 4: Simplify right side
   409,131.50x = 765,843,765,625
5. Step 5: Solve for x
   x = 765,843,765,625/409,131.50
6. Step 6: Final answer
   x = 1,871,876.81