Finding the Third Proportional to 235,087.50 and 358,140

Step by Step Solution

1. Step 1: Write the proportion equation
   235,087.50 : 358,140 = 358,140 : x
2. Step 2: Convert to fraction form
   235,087.50/358,140 = 358,140/x
3. Step 3: Cross multiply
   235,087.50x = 358,140 × 358,140
4. Step 4: Simplify right side
   235,087.50x = 128,264,259,600
5. Step 5: Solve for x
   x = 128,264,259,600/235,087.50
6. Step 6: Final answer
   x = 545,602.21