Finding the Third Proportional to 83,991 and 130,063.50

Step by Step Solution

1. Step 1: Write the proportion equation
   83,991 : 130,063.50 = 130,063.50 : x
2. Step 2: Convert to fraction form
   83,991/130,063.50 = 130,063.50/x
3. Step 3: Cross multiply
   83,991x = 130,063.50 × 130,063.50
4. Step 4: Simplify right side
   83,991x = 16,916,514,032.25
5. Step 5: Solve for x
   x = 16,916,514,032.25/83,991
6. Step 6: Final answer
   x = 201,408.65