Finding the Third Proportional to 65,851.31 and 141,689.25

Step by Step Solution

1. Step 1: Write the proportion equation
   65,851.31 : 141,689.25 = 141,689.25 : x
2. Step 2: Convert to fraction form
   65,851.31/141,689.25 = 141,689.25/x
3. Step 3: Cross multiply
   65,851.31x = 141,689.25 × 141,689.25
4. Step 4: Simplify right side
   65,851.31x = 20,075,843,565.56
5. Step 5: Solve for x
   x = 20,075,843,565.56/65,851.31
6. Step 6: Final answer
   x = 304,866.26