Finding the Third Proportional to 857,209.50 and 1,883,641.50

Step by Step Solution

1. Step 1: Write the proportion equation
   857,209.50 : 1,883,641.50 = 1,883,641.50 : x
2. Step 2: Convert to fraction form
   857,209.50/1,883,641.50 = 1,883,641.50/x
3. Step 3: Cross multiply
   857,209.50x = 1,883,641.50 × 1,883,641.50
4. Step 4: Simplify right side
   857,209.50x = 3,548,105,300,522.25
5. Step 5: Solve for x
   x = 3,548,105,300,522.25/857,209.50
6. Step 6: Final answer
   x = 4,139,134.37