Finding the Third Proportional to 42,416,258.75 and 64,857,005.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,416,258.75 : 64,857,005.50 = 64,857,005.50 : x
2. Step 2: Convert to fraction form
   42,416,258.75/64,857,005.50 = 64,857,005.50/x
3. Step 3: Cross multiply
   42,416,258.75x = 64,857,005.50 × 64,857,005.50
4. Step 4: Simplify right side
   42,416,258.75x = 4,206,431,162,427,030
5. Step 5: Solve for x
   x = 4,206,431,162,427,030/42,416,258.75
6. Step 6: Final answer
   x = 99,170,254.20