Finding the Third Proportional to 147,870 and 320,652.56

Step by Step Solution

1. Step 1: Write the proportion equation
   147,870 : 320,652.56 = 320,652.56 : x
2. Step 2: Convert to fraction form
   147,870/320,652.56 = 320,652.56/x
3. Step 3: Cross multiply
   147,870x = 320,652.56 × 320,652.56
4. Step 4: Simplify right side
   147,870x = 102,818,065,837.82
5. Step 5: Solve for x
   x = 102,818,065,837.82/147,870
6. Step 6: Final answer
   x = 695,327.42