Finding the Third Proportional to 175,131 and 271,687.50

Step by Step Solution

1. Step 1: Write the proportion equation
   175,131 : 271,687.50 = 271,687.50 : x
2. Step 2: Convert to fraction form
   175,131/271,687.50 = 271,687.50/x
3. Step 3: Cross multiply
   175,131x = 271,687.50 × 271,687.50
4. Step 4: Simplify right side
   175,131x = 73,814,097,656.25
5. Step 5: Solve for x
   x = 73,814,097,656.25/175,131
6. Step 6: Final answer
   x = 421,479.34