Finding the Third Proportional to 141,525 and 209,641.50

Step by Step Solution

1. Step 1: Write the proportion equation
   141,525 : 209,641.50 = 209,641.50 : x
2. Step 2: Convert to fraction form
   141,525/209,641.50 = 209,641.50/x
3. Step 3: Cross multiply
   141,525x = 209,641.50 × 209,641.50
4. Step 4: Simplify right side
   141,525x = 43,949,558,522.25
5. Step 5: Solve for x
   x = 43,949,558,522.25/141,525
6. Step 6: Final answer
   x = 310,542.72