Finding the Third Proportional to 133,173.50 and 286,111

Step by Step Solution

1. Step 1: Write the proportion equation
   133,173.50 : 286,111 = 286,111 : x
2. Step 2: Convert to fraction form
   133,173.50/286,111 = 286,111/x
3. Step 3: Cross multiply
   133,173.50x = 286,111 × 286,111
4. Step 4: Simplify right side
   133,173.50x = 81,859,504,321
5. Step 5: Solve for x
   x = 81,859,504,321/133,173.50
6. Step 6: Final answer
   x = 614,683.13