Finding the Third Proportional to 148,493.25 and 358,870.50

Step by Step Solution

1. Step 1: Write the proportion equation
   148,493.25 : 358,870.50 = 358,870.50 : x
2. Step 2: Convert to fraction form
   148,493.25/358,870.50 = 358,870.50/x
3. Step 3: Cross multiply
   148,493.25x = 358,870.50 × 358,870.50
4. Step 4: Simplify right side
   148,493.25x = 128,788,035,770.25
5. Step 5: Solve for x
   x = 128,788,035,770.25/148,493.25
6. Step 6: Final answer
   x = 867,298.92