Finding the Third Proportional to 103,439 and 147,645.50

Step by Step Solution

1. Step 1: Write the proportion equation
   103,439 : 147,645.50 = 147,645.50 : x
2. Step 2: Convert to fraction form
   103,439/147,645.50 = 147,645.50/x
3. Step 3: Cross multiply
   103,439x = 147,645.50 × 147,645.50
4. Step 4: Simplify right side
   103,439x = 21,799,193,670.25
5. Step 5: Solve for x
   x = 21,799,193,670.25/103,439
6. Step 6: Final answer
   x = 210,744.44