Finding the Third Proportional to 113,428 and 158,947.50

Step by Step Solution

1. Step 1: Write the proportion equation
   113,428 : 158,947.50 = 158,947.50 : x
2. Step 2: Convert to fraction form
   113,428/158,947.50 = 158,947.50/x
3. Step 3: Cross multiply
   113,428x = 158,947.50 × 158,947.50
4. Step 4: Simplify right side
   113,428x = 25,264,307,756.25
5. Step 5: Solve for x
   x = 25,264,307,756.25/113,428
6. Step 6: Final answer
   x = 222,734.31