Finding the Third Proportional to 86,391 and 141,069.50

Step by Step Solution

1. Step 1: Write the proportion equation
   86,391 : 141,069.50 = 141,069.50 : x
2. Step 2: Convert to fraction form
   86,391/141,069.50 = 141,069.50/x
3. Step 3: Cross multiply
   86,391x = 141,069.50 × 141,069.50
4. Step 4: Simplify right side
   86,391x = 19,900,603,830.25
5. Step 5: Solve for x
   x = 19,900,603,830.25/86,391
6. Step 6: Final answer
   x = 230,355.06