Finding the Third Proportional to 147,987 and 320,881.50

Step by Step Solution

1. Step 1: Write the proportion equation
   147,987 : 320,881.50 = 320,881.50 : x
2. Step 2: Convert to fraction form
   147,987/320,881.50 = 320,881.50/x
3. Step 3: Cross multiply
   147,987x = 320,881.50 × 320,881.50
4. Step 4: Simplify right side
   147,987x = 102,964,937,042.25
5. Step 5: Solve for x
   x = 102,964,937,042.25/147,987
6. Step 6: Final answer
   x = 695,770.15