Finding the Third Proportional to 160,420.50 and 346,518

Step by Step Solution

1. Step 1: Write the proportion equation
   160,420.50 : 346,518 = 346,518 : x
2. Step 2: Convert to fraction form
   160,420.50/346,518 = 346,518/x
3. Step 3: Cross multiply
   160,420.50x = 346,518 × 346,518
4. Step 4: Simplify right side
   160,420.50x = 120,074,724,324
5. Step 5: Solve for x
   x = 120,074,724,324/160,420.50
6. Step 6: Final answer
   x = 748,499.88