Finding the Third Proportional to 147,405 and 346,510.50

Step by Step Solution

1. Step 1: Write the proportion equation
   147,405 : 346,510.50 = 346,510.50 : x
2. Step 2: Convert to fraction form
   147,405/346,510.50 = 346,510.50/x
3. Step 3: Cross multiply
   147,405x = 346,510.50 × 346,510.50
4. Step 4: Simplify right side
   147,405x = 120,069,526,610.25
5. Step 5: Solve for x
   x = 120,069,526,610.25/147,405
6. Step 6: Final answer
   x = 814,555.32