Finding the Third Proportional to 62,439.19 and 91,288.69

Step by Step Solution

1. Step 1: Write the proportion equation
   62,439.19 : 91,288.69 = 91,288.69 : x
2. Step 2: Convert to fraction form
   62,439.19/91,288.69 = 91,288.69/x
3. Step 3: Cross multiply
   62,439.19x = 91,288.69 × 91,288.69
4. Step 4: Simplify right side
   62,439.19x = 8,333,624,465.47
5. Step 5: Solve for x
   x = 8,333,624,465.47/62,439.19
6. Step 6: Final answer
   x = 133,467.86