Finding the Third Proportional to 59,867,495 and 87,561,754.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59,867,495 : 87,561,754.50 = 87,561,754.50 : x
2. Step 2: Convert to fraction form
   59,867,495/87,561,754.50 = 87,561,754.50/x
3. Step 3: Cross multiply
   59,867,495x = 87,561,754.50 × 87,561,754.50
4. Step 4: Simplify right side
   59,867,495x = 7,667,060,851,118,270
5. Step 5: Solve for x
   x = 7,667,060,851,118,270/59,867,495
6. Step 6: Final answer
   x = 128,067,173.20