Finding the Third Proportional to 65,111,401.13 and 139,664,182.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,111,401.13 : 139,664,182.50 = 139,664,182.50 : x
2. Step 2: Convert to fraction form
   65,111,401.13/139,664,182.50 = 139,664,182.50/x
3. Step 3: Cross multiply
   65,111,401.13x = 139,664,182.50 × 139,664,182.50
4. Step 4: Simplify right side
   65,111,401.13x = 19,506,083,873,393,308
5. Step 5: Solve for x
   x = 19,506,083,873,393,308/65,111,401.13
6. Step 6: Final answer
   x = 299,580,158.56