Finding the Third Proportional to 147,219 and 317,752.50

Step by Step Solution

1. Step 1: Write the proportion equation
   147,219 : 317,752.50 = 317,752.50 : x
2. Step 2: Convert to fraction form
   147,219/317,752.50 = 317,752.50/x
3. Step 3: Cross multiply
   147,219x = 317,752.50 × 317,752.50
4. Step 4: Simplify right side
   147,219x = 100,966,651,256.25
5. Step 5: Solve for x
   x = 100,966,651,256.25/147,219
6. Step 6: Final answer
   x = 685,826.23