Finding the Third Proportional to 58,939,312 and 123,986,300

Step by Step Solution

1. Step 1: Write the proportion equation
   58,939,312 : 123,986,300 = 123,986,300 : x
2. Step 2: Convert to fraction form
   58,939,312/123,986,300 = 123,986,300/x
3. Step 3: Cross multiply
   58,939,312x = 123,986,300 × 123,986,300
4. Step 4: Simplify right side
   58,939,312x = 15,372,602,587,690,000
5. Step 5: Solve for x
   x = 15,372,602,587,690,000/58,939,312
6. Step 6: Final answer
   x = 260,820,869.23