Finding the Third Proportional to 149,715 and 220,181.63

Step by Step Solution

1. Step 1: Write the proportion equation
   149,715 : 220,181.63 = 220,181.63 : x
2. Step 2: Convert to fraction form
   149,715/220,181.63 = 220,181.63/x
3. Step 3: Cross multiply
   149,715x = 220,181.63 × 220,181.63
4. Step 4: Simplify right side
   149,715x = 48,479,947,987.64
5. Step 5: Solve for x
   x = 48,479,947,987.64/149,715
6. Step 6: Final answer
   x = 323,814.90