Finding the Third Proportional to 28,488 and 58,798.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,488 : 58,798.50 = 58,798.50 : x
2. Step 2: Convert to fraction form
   28,488/58,798.50 = 58,798.50/x
3. Step 3: Cross multiply
   28,488x = 58,798.50 × 58,798.50
4. Step 4: Simplify right side
   28,488x = 3,457,263,602.25
5. Step 5: Solve for x
   x = 3,457,263,602.25/28,488
6. Step 6: Final answer
   x = 121,358.59