Finding the Third Proportional to 69,426,087 and 149,300,566.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,426,087 : 149,300,566.50 = 149,300,566.50 : x
2. Step 2: Convert to fraction form
   69,426,087/149,300,566.50 = 149,300,566.50/x
3. Step 3: Cross multiply
   69,426,087x = 149,300,566.50 × 149,300,566.50
4. Step 4: Simplify right side
   69,426,087x = 22,290,659,157,220,924
5. Step 5: Solve for x
   x = 22,290,659,157,220,924/69,426,087
6. Step 6: Final answer
   x = 321,070,365.92