Finding the Third Proportional to 98,673.38 and 213,131.63

Step by Step Solution

1. Step 1: Write the proportion equation
   98,673.38 : 213,131.63 = 213,131.63 : x
2. Step 2: Convert to fraction form
   98,673.38/213,131.63 = 213,131.63/x
3. Step 3: Cross multiply
   98,673.38x = 213,131.63 × 213,131.63
4. Step 4: Simplify right side
   98,673.38x = 45,425,089,575.14
5. Step 5: Solve for x
   x = 45,425,089,575.14/98,673.38
6. Step 6: Final answer
   x = 460,358.12