Finding the Third Proportional to 153,018 and 215,101.50

Step by Step Solution

1. Step 1: Write the proportion equation
   153,018 : 215,101.50 = 215,101.50 : x
2. Step 2: Convert to fraction form
   153,018/215,101.50 = 215,101.50/x
3. Step 3: Cross multiply
   153,018x = 215,101.50 × 215,101.50
4. Step 4: Simplify right side
   153,018x = 46,268,655,302.25
5. Step 5: Solve for x
   x = 46,268,655,302.25/153,018
6. Step 6: Final answer
   x = 302,373.94