Finding the Third Proportional to 39,430.13 and 85,417.88

Step by Step Solution

1. Step 1: Write the proportion equation
   39,430.13 : 85,417.88 = 85,417.88 : x
2. Step 2: Convert to fraction form
   39,430.13/85,417.88 = 85,417.88/x
3. Step 3: Cross multiply
   39,430.13x = 85,417.88 × 85,417.88
4. Step 4: Simplify right side
   39,430.13x = 7,296,213,369.52
5. Step 5: Solve for x
   x = 7,296,213,369.52/39,430.13
6. Step 6: Final answer
   x = 185,041.60