Finding the Third Proportional to 148,959 and 351,338.63

Step by Step Solution

1. Step 1: Write the proportion equation
   148,959 : 351,338.63 = 351,338.63 : x
2. Step 2: Convert to fraction form
   148,959/351,338.63 = 351,338.63/x
3. Step 3: Cross multiply
   148,959x = 351,338.63 × 351,338.63
4. Step 4: Simplify right side
   148,959x = 123,438,829,416.89
5. Step 5: Solve for x
   x = 123,438,829,416.89/148,959
6. Step 6: Final answer
   x = 828,676.54