Finding the Third Proportional to 141,389 and 304,917.50

Step by Step Solution

1. Step 1: Write the proportion equation
   141,389 : 304,917.50 = 304,917.50 : x
2. Step 2: Convert to fraction form
   141,389/304,917.50 = 304,917.50/x
3. Step 3: Cross multiply
   141,389x = 304,917.50 × 304,917.50
4. Step 4: Simplify right side
   141,389x = 92,974,681,806.25
5. Step 5: Solve for x
   x = 92,974,681,806.25/141,389
6. Step 6: Final answer
   x = 657,580.73