Finding the Third Proportional to 65,490.19 and 141,412.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,490.19 : 141,412.50 = 141,412.50 : x
2. Step 2: Convert to fraction form
   65,490.19/141,412.50 = 141,412.50/x
3. Step 3: Cross multiply
   65,490.19x = 141,412.50 × 141,412.50
4. Step 4: Simplify right side
   65,490.19x = 19,997,495,156.25
5. Step 5: Solve for x
   x = 19,997,495,156.25/65,490.19
6. Step 6: Final answer
   x = 305,351.01