Finding the Third Proportional to 243,018 and 364,522.50

Step by Step Solution

1. Step 1: Write the proportion equation
   243,018 : 364,522.50 = 364,522.50 : x
2. Step 2: Convert to fraction form
   243,018/364,522.50 = 364,522.50/x
3. Step 3: Cross multiply
   243,018x = 364,522.50 × 364,522.50
4. Step 4: Simplify right side
   243,018x = 132,876,653,006.25
5. Step 5: Solve for x
   x = 132,876,653,006.25/243,018
6. Step 6: Final answer
   x = 546,777.00