Finding the Third Proportional to 31,312,378.83 and 64,772,665.03

Step by Step Solution

1. Step 1: Write the proportion equation
   31,312,378.83 : 64,772,665.03 = 64,772,665.03 : x
2. Step 2: Convert to fraction form
   31,312,378.83/64,772,665.03 = 64,772,665.03/x
3. Step 3: Cross multiply
   31,312,378.83x = 64,772,665.03 × 64,772,665.03
4. Step 4: Simplify right side
   31,312,378.83x = 4,195,498,135,250,516.50
5. Step 5: Solve for x
   x = 4,195,498,135,250,516.50/31,312,378.83
6. Step 6: Final answer
   x = 133,988,482.90