Finding the Third Proportional to 63,124.31 and 146,146.78

Step by Step Solution

1. Step 1: Write the proportion equation
   63,124.31 : 146,146.78 = 146,146.78 : x
2. Step 2: Convert to fraction form
   63,124.31/146,146.78 = 146,146.78/x
3. Step 3: Cross multiply
   63,124.31x = 146,146.78 × 146,146.78
4. Step 4: Simplify right side
   63,124.31x = 21,358,881,669.74
5. Step 5: Solve for x
   x = 21,358,881,669.74/63,124.31
6. Step 6: Final answer
   x = 338,362.21