Finding the Third Proportional to 407,892.50 and 874,833.50

Step by Step Solution

1. Step 1: Write the proportion equation
   407,892.50 : 874,833.50 = 874,833.50 : x
2. Step 2: Convert to fraction form
   407,892.50/874,833.50 = 874,833.50/x
3. Step 3: Cross multiply
   407,892.50x = 874,833.50 × 874,833.50
4. Step 4: Simplify right side
   407,892.50x = 765,333,652,722.25
5. Step 5: Solve for x
   x = 765,333,652,722.25/407,892.50
6. Step 6: Final answer
   x = 1,876,312.15