Finding the Third Proportional to 163,897.50 and 359,898

Step by Step Solution

1. Step 1: Write the proportion equation
   163,897.50 : 359,898 = 359,898 : x
2. Step 2: Convert to fraction form
   163,897.50/359,898 = 359,898/x
3. Step 3: Cross multiply
   163,897.50x = 359,898 × 359,898
4. Step 4: Simplify right side
   163,897.50x = 129,526,570,404
5. Step 5: Solve for x
   x = 129,526,570,404/163,897.50
6. Step 6: Final answer
   x = 790,290.09