Finding the Third Proportional to 141,798 and 212,695.50

Step by Step Solution

1. Step 1: Write the proportion equation
   141,798 : 212,695.50 = 212,695.50 : x
2. Step 2: Convert to fraction form
   141,798/212,695.50 = 212,695.50/x
3. Step 3: Cross multiply
   141,798x = 212,695.50 × 212,695.50
4. Step 4: Simplify right side
   141,798x = 45,239,375,720.25
5. Step 5: Solve for x
   x = 45,239,375,720.25/141,798
6. Step 6: Final answer
   x = 319,041.00