Finding the Third Proportional to 194,981.63 and 421,947

Step by Step Solution

1. Step 1: Write the proportion equation
   194,981.63 : 421,947 = 421,947 : x
2. Step 2: Convert to fraction form
   194,981.63/421,947 = 421,947/x
3. Step 3: Cross multiply
   194,981.63x = 421,947 × 421,947
4. Step 4: Simplify right side
   194,981.63x = 178,039,270,809
5. Step 5: Solve for x
   x = 178,039,270,809/194,981.63
6. Step 6: Final answer
   x = 913,107.94