Finding the Third Proportional to 169,830 and 359,887.50

Step by Step Solution

1. Step 1: Write the proportion equation
   169,830 : 359,887.50 = 359,887.50 : x
2. Step 2: Convert to fraction form
   169,830/359,887.50 = 359,887.50/x
3. Step 3: Cross multiply
   169,830x = 359,887.50 × 359,887.50
4. Step 4: Simplify right side
   169,830x = 129,519,012,656.25
5. Step 5: Solve for x
   x = 129,519,012,656.25/169,830
6. Step 6: Final answer
   x = 762,639.18