Finding the Third Proportional to 141,828 and 209,941.50

Step by Step Solution

1. Step 1: Write the proportion equation
   141,828 : 209,941.50 = 209,941.50 : x
2. Step 2: Convert to fraction form
   141,828/209,941.50 = 209,941.50/x
3. Step 3: Cross multiply
   141,828x = 209,941.50 × 209,941.50
4. Step 4: Simplify right side
   141,828x = 44,075,433,422.25
5. Step 5: Solve for x
   x = 44,075,433,422.25/141,828
6. Step 6: Final answer
   x = 310,766.80