Finding the Third Proportional to 194,282.50 and 418,090

Step by Step Solution

1. Step 1: Write the proportion equation
   194,282.50 : 418,090 = 418,090 : x
2. Step 2: Convert to fraction form
   194,282.50/418,090 = 418,090/x
3. Step 3: Cross multiply
   194,282.50x = 418,090 × 418,090
4. Step 4: Simplify right side
   194,282.50x = 174,799,248,100
5. Step 5: Solve for x
   x = 174,799,248,100/194,282.50
6. Step 6: Final answer
   x = 899,716.90