Finding the Third Proportional to 62,478 and 136,606.50

Step by Step Solution

1. Step 1: Write the proportion equation
   62,478 : 136,606.50 = 136,606.50 : x
2. Step 2: Convert to fraction form
   62,478/136,606.50 = 136,606.50/x
3. Step 3: Cross multiply
   62,478x = 136,606.50 × 136,606.50
4. Step 4: Simplify right side
   62,478x = 18,661,335,842.25
5. Step 5: Solve for x
   x = 18,661,335,842.25/62,478
6. Step 6: Final answer
   x = 298,686.51