Finding the Third Proportional to 163,458 and 346,389.75

Step by Step Solution

1. Step 1: Write the proportion equation
   163,458 : 346,389.75 = 346,389.75 : x
2. Step 2: Convert to fraction form
   163,458/346,389.75 = 346,389.75/x
3. Step 3: Cross multiply
   163,458x = 346,389.75 × 346,389.75
4. Step 4: Simplify right side
   163,458x = 119,985,858,905.06
5. Step 5: Solve for x
   x = 119,985,858,905.06/163,458
6. Step 6: Final answer
   x = 734,047.03