Finding the Third Proportional to 201,270 and 434,071.50

Step by Step Solution

1. Step 1: Write the proportion equation
   201,270 : 434,071.50 = 434,071.50 : x
2. Step 2: Convert to fraction form
   201,270/434,071.50 = 434,071.50/x
3. Step 3: Cross multiply
   201,270x = 434,071.50 × 434,071.50
4. Step 4: Simplify right side
   201,270x = 188,418,067,112.25
5. Step 5: Solve for x
   x = 188,418,067,112.25/201,270
6. Step 6: Final answer
   x = 936,145.81