Finding the Third Proportional to 67,482,332 and 139,749,820

Step by Step Solution

1. Step 1: Write the proportion equation
   67,482,332 : 139,749,820 = 139,749,820 : x
2. Step 2: Convert to fraction form
   67,482,332/139,749,820 = 139,749,820/x
3. Step 3: Cross multiply
   67,482,332x = 139,749,820 × 139,749,820
4. Step 4: Simplify right side
   67,482,332x = 19,530,012,190,032,400
5. Step 5: Solve for x
   x = 19,530,012,190,032,400/67,482,332
6. Step 6: Final answer
   x = 289,409,266.27