Finding the Third Proportional to 134,947.50 and 290,654.63

Step by Step Solution

1. Step 1: Write the proportion equation
   134,947.50 : 290,654.63 = 290,654.63 : x
2. Step 2: Convert to fraction form
   134,947.50/290,654.63 = 290,654.63/x
3. Step 3: Cross multiply
   134,947.50x = 290,654.63 × 290,654.63
4. Step 4: Simplify right side
   134,947.50x = 84,480,111,033.89
5. Step 5: Solve for x
   x = 84,480,111,033.89/134,947.50
6. Step 6: Final answer
   x = 626,022.05