Finding the Third Proportional to 197,392.50 and 434,139

Step by Step Solution

1. Step 1: Write the proportion equation
   197,392.50 : 434,139 = 434,139 : x
2. Step 2: Convert to fraction form
   197,392.50/434,139 = 434,139/x
3. Step 3: Cross multiply
   197,392.50x = 434,139 × 434,139
4. Step 4: Simplify right side
   197,392.50x = 188,476,671,321
5. Step 5: Solve for x
   x = 188,476,671,321/197,392.50
6. Step 6: Final answer
   x = 954,831.98