Finding the Third Proportional to 31,900,754 and 69,977,057

Step by Step Solution

1. Step 1: Write the proportion equation
   31,900,754 : 69,977,057 = 69,977,057 : x
2. Step 2: Convert to fraction form
   31,900,754/69,977,057 = 69,977,057/x
3. Step 3: Cross multiply
   31,900,754x = 69,977,057 × 69,977,057
4. Step 4: Simplify right side
   31,900,754x = 4,896,788,506,381,249
5. Step 5: Solve for x
   x = 4,896,788,506,381,249/31,900,754
6. Step 6: Final answer
   x = 153,500,713.69