Finding the Third Proportional to 65,011,926.50 and 89,147,146

Step by Step Solution

1. Step 1: Write the proportion equation
   65,011,926.50 : 89,147,146 = 89,147,146 : x
2. Step 2: Convert to fraction form
   65,011,926.50/89,147,146 = 89,147,146/x
3. Step 3: Cross multiply
   65,011,926.50x = 89,147,146 × 89,147,146
4. Step 4: Simplify right side
   65,011,926.50x = 7,947,213,639,945,316
5. Step 5: Solve for x
   x = 7,947,213,639,945,316/65,011,926.50
6. Step 6: Final answer
   x = 122,242,395.63