Finding the Third Proportional to 58,320 and 84,300.75

Step by Step Solution

1. Step 1: Write the proportion equation
   58,320 : 84,300.75 = 84,300.75 : x
2. Step 2: Convert to fraction form
   58,320/84,300.75 = 84,300.75/x
3. Step 3: Cross multiply
   58,320x = 84,300.75 × 84,300.75
4. Step 4: Simplify right side
   58,320x = 7,106,616,450.56
5. Step 5: Solve for x
   x = 7,106,616,450.56/58,320
6. Step 6: Final answer
   x = 121,855.56