Finding the Third Proportional to 181,398 and 423,592.50

Step by Step Solution

1. Step 1: Write the proportion equation
   181,398 : 423,592.50 = 423,592.50 : x
2. Step 2: Convert to fraction form
   181,398/423,592.50 = 423,592.50/x
3. Step 3: Cross multiply
   181,398x = 423,592.50 × 423,592.50
4. Step 4: Simplify right side
   181,398x = 179,430,606,056.25
5. Step 5: Solve for x
   x = 179,430,606,056.25/181,398
6. Step 6: Final answer
   x = 989,154.27