Finding the Third Proportional to 70,578 and 109,201.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,578 : 109,201.50 = 109,201.50 : x
2. Step 2: Convert to fraction form
   70,578/109,201.50 = 109,201.50/x
3. Step 3: Cross multiply
   70,578x = 109,201.50 × 109,201.50
4. Step 4: Simplify right side
   70,578x = 11,924,967,602.25
5. Step 5: Solve for x
   x = 11,924,967,602.25/70,578
6. Step 6: Final answer
   x = 168,961.54