Finding the Third Proportional to 197,500.50 and 385,146

Step by Step Solution

1. Step 1: Write the proportion equation
   197,500.50 : 385,146 = 385,146 : x
2. Step 2: Convert to fraction form
   197,500.50/385,146 = 385,146/x
3. Step 3: Cross multiply
   197,500.50x = 385,146 × 385,146
4. Step 4: Simplify right side
   197,500.50x = 148,337,441,316
5. Step 5: Solve for x
   x = 148,337,441,316/197,500.50
6. Step 6: Final answer
   x = 751,073.75