Finding the Third Proportional to 149,479.50 and 249,132

Step by Step Solution

1. Step 1: Write the proportion equation
   149,479.50 : 249,132 = 249,132 : x
2. Step 2: Convert to fraction form
   149,479.50/249,132 = 249,132/x
3. Step 3: Cross multiply
   149,479.50x = 249,132 × 249,132
4. Step 4: Simplify right side
   149,479.50x = 62,066,753,424
5. Step 5: Solve for x
   x = 62,066,753,424/149,479.50
6. Step 6: Final answer
   x = 415,219.17