Finding the Third Proportional to 85,519 and 134,152.50

Step by Step Solution

1. Step 1: Write the proportion equation
   85,519 : 134,152.50 = 134,152.50 : x
2. Step 2: Convert to fraction form
   85,519/134,152.50 = 134,152.50/x
3. Step 3: Cross multiply
   85,519x = 134,152.50 × 134,152.50
4. Step 4: Simplify right side
   85,519x = 17,996,893,256.25
5. Step 5: Solve for x
   x = 17,996,893,256.25/85,519
6. Step 6: Final answer
   x = 210,443.21