Finding the Third Proportional to 196,955 and 286,820.50

Step by Step Solution

1. Step 1: Write the proportion equation
   196,955 : 286,820.50 = 286,820.50 : x
2. Step 2: Convert to fraction form
   196,955/286,820.50 = 286,820.50/x
3. Step 3: Cross multiply
   196,955x = 286,820.50 × 286,820.50
4. Step 4: Simplify right side
   196,955x = 82,265,999,220.25
5. Step 5: Solve for x
   x = 82,265,999,220.25/196,955
6. Step 6: Final answer
   x = 417,689.32