Finding the Third Proportional to 404,841.50 and 871,961.50

Step by Step Solution

1. Step 1: Write the proportion equation
   404,841.50 : 871,961.50 = 871,961.50 : x
2. Step 2: Convert to fraction form
   404,841.50/871,961.50 = 871,961.50/x
3. Step 3: Cross multiply
   404,841.50x = 871,961.50 × 871,961.50
4. Step 4: Simplify right side
   404,841.50x = 760,316,857,482.25
5. Step 5: Solve for x
   x = 760,316,857,482.25/404,841.50
6. Step 6: Final answer
   x = 1,878,060.57