Finding the Third Proportional to 135,109,402 and 294,993,139

Step by Step Solution

1. Step 1: Write the proportion equation
   135,109,402 : 294,993,139 = 294,993,139 : x
2. Step 2: Convert to fraction form
   135,109,402/294,993,139 = 294,993,139/x
3. Step 3: Cross multiply
   135,109,402x = 294,993,139 × 294,993,139
4. Step 4: Simplify right side
   135,109,402x = 87,020,952,057,073,328
5. Step 5: Solve for x
   x = 87,020,952,057,073,328/135,109,402
6. Step 6: Final answer
   x = 644,077,693.85