Finding the Third Proportional to 58,461.75 and 91,109.81

Step by Step Solution

1. Step 1: Write the proportion equation
   58,461.75 : 91,109.81 = 91,109.81 : x
2. Step 2: Convert to fraction form
   58,461.75/91,109.81 = 91,109.81/x
3. Step 3: Cross multiply
   58,461.75x = 91,109.81 × 91,109.81
4. Step 4: Simplify right side
   58,461.75x = 8,300,997,933.79
5. Step 5: Solve for x
   x = 8,300,997,933.79/58,461.75
6. Step 6: Final answer
   x = 141,990.24