Finding the Third Proportional to 58,582 and 90,786

Step by Step Solution

1. Step 1: Write the proportion equation
   58,582 : 90,786 = 90,786 : x
2. Step 2: Convert to fraction form
   58,582/90,786 = 90,786/x
3. Step 3: Cross multiply
   58,582x = 90,786 × 90,786
4. Step 4: Simplify right side
   58,582x = 8,242,097,796
5. Step 5: Solve for x
   x = 8,242,097,796/58,582
6. Step 6: Final answer
   x = 140,693.35