Finding the Third Proportional to 103,977.50 and 212,873

Step by Step Solution

1. Step 1: Write the proportion equation
   103,977.50 : 212,873 = 212,873 : x
2. Step 2: Convert to fraction form
   103,977.50/212,873 = 212,873/x
3. Step 3: Cross multiply
   103,977.50x = 212,873 × 212,873
4. Step 4: Simplify right side
   103,977.50x = 45,314,914,129
5. Step 5: Solve for x
   x = 45,314,914,129/103,977.50
6. Step 6: Final answer
   x = 435,814.61