Finding the Third Proportional to 179,490 and 388,696.50

Step by Step Solution

1. Step 1: Write the proportion equation
   179,490 : 388,696.50 = 388,696.50 : x
2. Step 2: Convert to fraction form
   179,490/388,696.50 = 388,696.50/x
3. Step 3: Cross multiply
   179,490x = 388,696.50 × 388,696.50
4. Step 4: Simplify right side
   179,490x = 151,084,969,112.25
5. Step 5: Solve for x
   x = 151,084,969,112.25/179,490
6. Step 6: Final answer
   x = 841,745.89