Finding the Third Proportional to 69,426,088 and 149,300,569

Step by Step Solution

1. Step 1: Write the proportion equation
   69,426,088 : 149,300,569 = 149,300,569 : x
2. Step 2: Convert to fraction form
   69,426,088/149,300,569 = 149,300,569/x
3. Step 3: Cross multiply
   69,426,088x = 149,300,569 × 149,300,569
4. Step 4: Simplify right side
   69,426,088x = 22,290,659,903,723,760
5. Step 5: Solve for x
   x = 22,290,659,903,723,760/69,426,088
6. Step 6: Final answer
   x = 321,070,372.04