Finding the Third Proportional to 36,090.56 and 86,945.91

Step by Step Solution

1. Step 1: Write the proportion equation
   36,090.56 : 86,945.91 = 86,945.91 : x
2. Step 2: Convert to fraction form
   36,090.56/86,945.91 = 86,945.91/x
3. Step 3: Cross multiply
   36,090.56x = 86,945.91 × 86,945.91
4. Step 4: Simplify right side
   36,090.56x = 7,559,590,613.63
5. Step 5: Solve for x
   x = 7,559,590,613.63/36,090.56
6. Step 6: Final answer
   x = 209,461.70