Finding the Third Proportional to 58,242.38 and 87,820.88

Step by Step Solution

1. Step 1: Write the proportion equation
   58,242.38 : 87,820.88 = 87,820.88 : x
2. Step 2: Convert to fraction form
   58,242.38/87,820.88 = 87,820.88/x
3. Step 3: Cross multiply
   58,242.38x = 87,820.88 × 87,820.88
4. Step 4: Simplify right side
   58,242.38x = 7,712,506,085.77
5. Step 5: Solve for x
   x = 7,712,506,085.77/58,242.38
6. Step 6: Final answer
   x = 132,420.87