Finding the Third Proportional to 91,920,465 and 142,522,969.50

Step by Step Solution

1. Step 1: Write the proportion equation
   91,920,465 : 142,522,969.50 = 142,522,969.50 : x
2. Step 2: Convert to fraction form
   91,920,465/142,522,969.50 = 142,522,969.50/x
3. Step 3: Cross multiply
   91,920,465x = 142,522,969.50 × 142,522,969.50
4. Step 4: Simplify right side
   91,920,465x = 20,312,796,835,097,932
5. Step 5: Solve for x
   x = 20,312,796,835,097,932/91,920,465
6. Step 6: Final answer
   x = 220,982,311.56