Finding the Third Proportional to 31,900,758 and 69,977,066

Step by Step Solution

1. Step 1: Write the proportion equation
   31,900,758 : 69,977,066 = 69,977,066 : x
2. Step 2: Convert to fraction form
   31,900,758/69,977,066 = 69,977,066/x
3. Step 3: Cross multiply
   31,900,758x = 69,977,066 × 69,977,066
4. Step 4: Simplify right side
   31,900,758x = 4,896,789,765,968,356
5. Step 5: Solve for x
   x = 4,896,789,765,968,356/31,900,758
6. Step 6: Final answer
   x = 153,500,733.93