Finding the Third Proportional to 103,043 and 217,156.50

Step by Step Solution

1. Step 1: Write the proportion equation
   103,043 : 217,156.50 = 217,156.50 : x
2. Step 2: Convert to fraction form
   103,043/217,156.50 = 217,156.50/x
3. Step 3: Cross multiply
   103,043x = 217,156.50 × 217,156.50
4. Step 4: Simplify right side
   103,043x = 47,156,945,492.25
5. Step 5: Solve for x
   x = 47,156,945,492.25/103,043
6. Step 6: Final answer
   x = 457,643.37