Finding the Third Proportional to 90,055.50 and 208,461

Step by Step Solution

1. Step 1: Write the proportion equation
   90,055.50 : 208,461 = 208,461 : x
2. Step 2: Convert to fraction form
   90,055.50/208,461 = 208,461/x
3. Step 3: Cross multiply
   90,055.50x = 208,461 × 208,461
4. Step 4: Simplify right side
   90,055.50x = 43,455,988,521
5. Step 5: Solve for x
   x = 43,455,988,521/90,055.50
6. Step 6: Final answer
   x = 482,546.75