Finding the Third Proportional to 153,513 and 236,821.50

Step by Step Solution

1. Step 1: Write the proportion equation
   153,513 : 236,821.50 = 236,821.50 : x
2. Step 2: Convert to fraction form
   153,513/236,821.50 = 236,821.50/x
3. Step 3: Cross multiply
   153,513x = 236,821.50 × 236,821.50
4. Step 4: Simplify right side
   153,513x = 56,084,422,862.25
5. Step 5: Solve for x
   x = 56,084,422,862.25/153,513
6. Step 6: Final answer
   x = 365,339.89