Finding the Third Proportional to 201,148 and 418,981.50

Step by Step Solution

1. Step 1: Write the proportion equation
   201,148 : 418,981.50 = 418,981.50 : x
2. Step 2: Convert to fraction form
   201,148/418,981.50 = 418,981.50/x
3. Step 3: Cross multiply
   201,148x = 418,981.50 × 418,981.50
4. Step 4: Simplify right side
   201,148x = 175,545,497,342.25
5. Step 5: Solve for x
   x = 175,545,497,342.25/201,148
6. Step 6: Final answer
   x = 872,718.08